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Artykuły w czasopismach na temat „Photoabsorbers”

Autor: Grafiati

Data publikacji: 6 września 2023

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1

Mohammadnezhad, Mahyar, Brahim Aïssa, Catalin Harnagea i Federico Rosei. "Hybrid PCDTBT:PCBM:Graphene-Nanoplatelet Photoabsorbers". Journal of The Electrochemical Society 167, nr 13 (18.09.2020): 136504. http://dx.doi.org/10.1149/1945-7111/abb6ce.

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Naumann, Kathrin, Tim Tichter, Ole Hansen, Brian Seger, Ib Chorkendorff i Peter Vesborg. "Cu As Co-Catalyst for the Photo-Electrochemical CO Reduction on Multi-Junction Photoabsorbers". ECS Meeting Abstracts MA2022-01, nr 36 (7.07.2022): 1605. http://dx.doi.org/10.1149/ma2022-01361605mtgabs.

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Substantial research effort has been dedicated to the electrochemical reduction of CO2 (CO2R) to higher carbon products throughout the recent years, baring the promise of a production pathway for green fuels and chemicals.1 However, only little progress has been achieved in the light driven heterogeneous CO2R catalysis, especially considering selective processes towards C2+ products. This arises from the additional complexity of photo-electrochemical reactions, which means that not only the sluggish reaction kinetics, high overpotentials and low selectivity of CO2R, but also the insufficient voltage and sensitivity towards harsh electrolyte conditions of photoabsorbers have to be encountered. Considering CO2R as multi-step process with CO as intermediate mitigates some issues of the process, e.g. the necessary overpotential is reduced and a higher selectivity towards valuable products can be achieved.2 Multi-junction solar stacks can provide operating voltages >2 V, which is sufficient for reducing CO2 to CO with high efficiencies or even produce multi-carbon products from CO while oxidizing water as anode reaction.3 In this work, we designed a process for photo-electrochemical CO reduction with multi-junction photoabsorbers. We start out by showing photo-electrochemical modelling of tandem photoabsorbers that emphasizes the advantages of CO as reactant compared to CO2. Further, we focus on the preparation of a nano-structured Cu catalyst, the most common material for reducing CO to C2+. Therefore, the electrochemical deposition and surface characterization using SEM, EDX and XPS of the catalyst on a dark model electrode coated with a sputter deposited TiO2 protection layer will be presented. Moreover, the CO reduction performance of the model at different potentials are characterized. In addition, the light transmission of the model electrode is reported, baring the possibility of illuminating the photoelectrode from the catalyst front side in mind. Lastly, the transfer of the model catalyst to a photoabsorber as well as the design of a photo-electrochemical flow-cell are discussed. Nitopi, S. et al. Progress and Perspectives of Electrochemical CO2 Reduction on Copper in Aqueous Electrolyte. Rev. 119, 7610–7672 (2019)1. Wang, L. et al. Electrochemical Carbon Monoxide Reduction on Polycrystalline Copper: Effects of Potential, Pressure, and pH on Selectivity toward Multicarbon and Oxygenated Products. ACS Catal. 8, 7445–7454 (2018) Seger, B., Hansen, O. & Vesborg, P. C. K. A Flexible Web-Based Approach to Modeling Tandem Photocatalytic Devices. RRL 1, e201600013 (2017). Figure 1

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3

Stoerzinger, Kelsey A., Le Wang, Yifan Ye, Mark Bowden, Ethan J. Crumlin, Yingge Du i Scott A. Chambers. "Linking surface chemistry to photovoltage in Sr-substituted LaFeO3 for water oxidation". Journal of Materials Chemistry A 6, nr 44 (2018): 22170–78. http://dx.doi.org/10.1039/c8ta05741a.

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Achilleos, Demetra S., Hatice Kasap i Erwin Reisner. "Photocatalytic hydrogen generation coupled to pollutant utilisation using carbon dots produced from biomass". Green Chemistry 22, nr 9 (2020): 2831–39. http://dx.doi.org/10.1039/d0gc00318b.

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5

Wang, Xiaoran, Zizhen Yang, Zhaowei Meng i Shao-Kai Sun. "Transforming Commercial Copper Sulfide into Injectable Hydrogels for Local Photothermal Therapy". Gels 8, nr 5 (20.05.2022): 319. http://dx.doi.org/10.3390/gels8050319.

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Photothermal therapy (PTT) is a promising local therapy playing an increasingly important role in tumor treatment. To maximize PTT efficacy, various near-infrared photoabsorbers have been developed. Among them, metal sulfides have attracted considerable interest due to the advantages of good stability and high photothermal conversion efficiency. However, the existing synthesis methods of metal-sulfide-based photoabsorbers suffer from the drawbacks of complicated procedures, low raw material utilization, and poor universality. Herein, we proposed a flexible, adjustable strategy capable of transforming commercial metal sulfides into injectable hydrogels for local PTT. We took copper sulfide (CuS) as a typical example, which has intense second-window near-infrared absorption (1064 nm), to systematically investigate its in vitro and in vivo characteristics. CuS hydrogel with good syringeability was synthesized by simply dispersing commercial CuS powders as photoabsorbers in alginate-Ca2+ hydrogel. This synthesis strategy exhibits the unique merits of an ultra-simple synthesizing process, 100% loading efficiency, good biocompatibility, low cost, outstanding photothermal capacity, and good universality. The in vitro experiments indicated that the hydrogel exhibits favorable photothermal heating ability, and it obviously destroyed tumor cells under 1064 nm laser irradiation. After intratumoral administration in vivo, large-sized CuS particles in the hydrogel highly efficiently accumulated in tumor tissues, and robust local PTT was realized under mild laser irradiation (0.3 W/cm2). The developed strategy for the synthesis of CuS hydrogel provides a novel way to utilize commercial metal sulfides for diverse biological applications.

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6

Tsiba Matondo, Jadel, Davy Maurice Malouangou, Luyun Bai, Yifan Yang, Jespere Nzobadila Ondze, Theogene Bimenyimana i Mina Guli. "Recent progress in tailoring the properties of inorganic CsPbX3 perovskites with functional organic compounds: a route to enhanced efficiency and operational stability in CsPbX3-based photovoltaics". Journal of Materials Chemistry C 9, nr 30 (2021): 9377–99. http://dx.doi.org/10.1039/d1tc02270a.

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Due to their superior thermostability, inorganic CsPbX₃ halide perovskites are considered the most promising photoabsorbers for commercially viable photovoltaic devices compared to their organic–inorganic analogs, which have demonstrated very impressive solar cell efficiency evolution in a few years though.

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7

Kim, Dong Su, Young Been Kim, Sung Hyeon Jung, Nishad G. Deshpande, Ji Hoon Choi, Ho Seong Lee i Hyung Koun Cho. "Atomically tunable photo-assisted electrochemical oxidation process design for the decoration of ultimate-thin CuO on Cu2O photocathodes and their enhanced photoelectrochemical performances". Journal of Materials Chemistry A 8, nr 41 (2020): 21744–55. http://dx.doi.org/10.1039/d0ta06010k.

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A representative method of forming CuO thin films on Cu₂O photoabsorbers is simple annealing oxidation at high temperature in a controlled oxygen atmosphere, but the typical oxidation process is irregular, resulting in a high density of defect sites.

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8

Crovetto, Andrea, Korina Kuhar, Peter C. K. Vesborg, Ole Hansen, Monish Pandey, Karsten Jacobsen, Kristian Thygesen, Ib Chorkendorff i Brian Seger. "Large Band Gap Photoabsorbers for Tandem Water Splitting Devices". ECS Meeting Abstracts MA2018-01, nr 31 (13.04.2018): 1912. http://dx.doi.org/10.1149/ma2018-01/31/1912.

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This talk will first discuss the parameters necessary for an optimal water-splitting device using a web based modeling program we developed (SolarFuelsModeling.com).1 The results from this show an optimal a tandem device for water splitting needs photoabsorbers with band gaps of ~2.0 eV and 1.1 eV. After a short review on our work on small band gap Si photoelectrodes,2-4 we will then discuss our combined computational and experimental approach to finding highly efficient large band gap photoabsorbers.5 Using computational modeling, we investigated ABS3 type sulfides and found 15 materials with a reasonable band gap, a direct band gap, low effective electron/hole mass and that are relatively defect tolerant. One of these proposed materials, LaYS3 has already been tested and shows a direct band gap near 2 eV and a fluorescence spectra indicating no significant mid gap states as shown in the image below. Seger, B.; Hansen, O.; Vesborg, P. C. K., A Flexible Web-Based Approach to Modeling Tandem Photocatalytic Devices. Solar RRL 2017, 1 (1), n/a-n/a. Mei, B.; Permyakova, A. A.; Frydendal, R.; Bae, D.; Pedersen, T.; Malacrida, P.; Hansen, O.; Stephens, I. E. L.; Vesborg, P. C. K.; Seger, B.; Chorkendorff, I., Iron-Treated NiO as a Highly Transparent p-Type Protection Layer for Efficient Si-Based Photoanodes. Journal of Physical Chemistry Letters 2014, 5 (20), 3456-3461. Mei, B.; Seger, B.; Pedersen, T.; Malizia, M.; Hansen, O.; Chorkendorff, I.; Vesborg, P. C. K., Protection of p(+)-n-Si Photoanodes by Sputter-Deposited Ir/IrOx Thin Films. Journal of Physical Chemistry Letters 2014, 5 (11), 1948-1952. Seger, B.; Pedersen, T.; Laursen, A. B.; Vesborg, P. C. K.; Hansen, O.; Chorkendorff, I., Using TiO2 as a Conductive Protective Layer for Photocathodic H-2 Evolution. Journal of the American Chemical Society 2013, 135 (3), 1057-1064. Kuhar, K.; Andrea, C.; Monish, P.; Kristian, S. T.; Brian, S.; Peter, V.; Ole, H.; Chorkendorff, I.; Karsten, W. J., Sulfide Perovskites for Solar Energy Conversion Applications: Computational Screening and Synthesis of the Selected Compound LaYS3. Energy & Environmental Science 2017, Accepted. Figure 1

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9

de Respinis, Moreno, Maria Fravventura, Fatwa F. Abdi, Herman Schreuders, Tom J. Savenije, Wilson A. Smith, Bernard Dam i Roel van de Krol. "Oxynitrogenography: Controlled Synthesis of Single-Phase Tantalum Oxynitride Photoabsorbers". Chemistry of Materials 27, nr 20 (6.10.2015): 7091–99. http://dx.doi.org/10.1021/acs.chemmater.5b02938.

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10

Ryan, Kevin M., Shalini Singh, Pai Liu i Ajay Singh. "Assembly of binary, ternary and quaternary compound semiconductor nanorods: From local to device scale ordering influenced by surface charge". CrystEngComm 16, nr 40 (2014): 9446–54. http://dx.doi.org/10.1039/c4ce00679h.

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In this article we outline the assembly of binary, ternary and quaternary nanorods using three separate protocols: (a) droplet based assembly, (b) assembly in a vial, (c) electrophoretic deposition. The rods are the important photoabsorbers CdS, CdSexS_1−x, CuIn_xGa_1−xS, and Cu₂ZnSnS₄.

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11

Jo, SeongHoon, In-Cheol Sun, Wan Su Yun, Jinseong Kim, Dong-Kwon Lim, Cheol-Hee Ahn i Kwangmeyung Kim. "Thiol-Responsive Gold Nanodot Swarm with Glycol Chitosan for Photothermal Cancer Therapy". Molecules 26, nr 19 (2.10.2021): 5980. http://dx.doi.org/10.3390/molecules26195980.

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Photothermal therapy (PTT) is one of the most promising cancer treatment methods because hyperthermal effects and immunogenic cell death via PTT are destructive to cancer. However, PTT requires photoabsorbers that absorb near-infrared (NIR) light with deeper penetration depth in the body and effectively convert light into heat. Gold nanoparticles have various unique properties which are suitable for photoabsorbers, e.g., controllable optical properties and easy surface modification. We developed gold nanodot swarms (AuNSw) by creating small gold nanoparticles (sGNPs) in the presence of hydrophobically-modified glycol chitosan. The sGNPs assembled with each other through their interaction with amine groups of glycol chitosan. AuNSw absorbed 808-nm laser and increased temperature to 55 °C. In contrast, AuNSw lost its particle structure upon exposure to thiolated molecules and did not convert NIR light into heat. In vitro studies demonstrated the photothermal effect and immunogenic cell death after PTT with AuNSW. After intratumoral injection of AuNSw with laser irradiation, tumor growth of xenograft mouse models was depressed. We found hyperthermal damage and immunogenic cell death in tumor tissues through histological and biochemical analyses. Thiol-responsive AuNSw showed feasibility for PTT, with advanced functionality in the tumor microenvironment.

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12

Rühle, Sven, i David Cahen. "Contact-free photovoltage measurements of photoabsorbers using a Kelvin probe". Journal of Applied Physics 96, nr 3 (sierpień 2004): 1556–62. http://dx.doi.org/10.1063/1.1767977.

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13

Crovetto, Andrea, Zongda Xing, Moritz Fischer, Rasmus Nielsen, Christopher N. Savory, Tomas Rindzevicius, Nicolas Stenger, David O. Scanlon, Ib Chorkendorff i Peter C. K. Vesborg. "Experimental and First-Principles Spectroscopy of Cu2SrSnS4 and Cu2BaSnS4 Photoabsorbers". ACS Applied Materials & Interfaces 12, nr 45 (27.10.2020): 50446–54. http://dx.doi.org/10.1021/acsami.0c14578.

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14

Kim, Kwanghyun, Jihun Kang, Sun-I. Kim, Suhee Kim, Seung-Tak Ryu i Ji-Hyun Jang. "Recycling of Particulate Photoabsorbers for Highly Stable Solar Desalination Operation". ACS Applied Energy Materials 3, nr 9 (4.08.2020): 8295–301. http://dx.doi.org/10.1021/acsaem.0c00824.

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15

Crovetto, Andrea, Alireza Hajijafarassar, Ole Hansen, Brian Seger, Ib Chorkendorff i Peter C. K. Vesborg. "Parallel Evaluation of the BiI3, BiOI, and Ag3BiI6 Layered Photoabsorbers". Chemistry of Materials 32, nr 8 (30.03.2020): 3385–95. http://dx.doi.org/10.1021/acs.chemmater.9b04925.

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Rich, Laurie J., Sarah R. Chamberlain, Daniela R. Falcone, Robert Bruce, Andrew Heinmiller, Jun Xia i Mukund Seshadri. "Performance Characteristics of Photoacoustic Imaging Probes with Varying Frequencies and Light-delivery Schemes". Ultrasonic Imaging 41, nr 6 (30.09.2019): 319–35. http://dx.doi.org/10.1177/0161734619879043.

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Photoacoustic imaging (PAI) is an emerging biomedical imaging technique that utilizes a combination of light and ultrasound to detect photoabsorbers embedded within tissues. While the clinical utility of PAI has been widely explored for several applications, limitations in light penetration and detector sensitivity have restricted these studies to mostly superficial sites. Given the importance of PA signal generation and detection on light delivery and ultrasound detector frequency, there is an ongoing effort to optimize these parameters to enhance photoabsorber detection at increased depths. With this in mind, in this study we examined performance benchmarks of a commercially available PAI/ultrasound linear array system when using different imaging frequencies and light delivery schemes. A modified light fiber jacket providing focused light delivery (FLD) at the center of the probe was compared with the built-in fiber optics lining the length of the probe. Studies were performed in vitro to compare performance characteristics such as imaging resolution, maximum imaging depth, and sensitivity to varying hematocrit concentration for each frequency and light delivery method. Monte Carlo simulations of each light delivery method revealed increased light penetration with FLD. In tissue-mimicking phantoms, vascular channels used to simulate blood vessels could be visualized at a depth of 2.4 cm when lowering imaging frequency and utilizing FLD. Imaging at lower frequencies with FLD also enabled enhanced detection of varying hematocrit concentration levels at increased depths, although lateral imaging resolution was reduced. Finally, a proof of concept in vivo probe comparison study in a mouse tumor model provided supportive evidence of our in vitro results. Collectively, our findings show that adjusting imaging frequency and applying FLD can be a straightforward approach for improving PAI performance.

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17

Zhou, Junshuai, Zhili Ye, Jie Hou, Jiaojiao Wu, Yan-Zhen Zheng i Xia Tao. "Efficient ambient-air-stable HTM-free carbon-based perovskite solar cells with hybrid 2D–3D lead halide photoabsorbers". Journal of Materials Chemistry A 6, nr 45 (2018): 22626–35. http://dx.doi.org/10.1039/c8ta07836j.

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HTM-free carbon-based perovskite solar cells (C-PSCs) with over 11.88% efficiency employing the 2D–3D hybrid perovskite photoabsorber achieve the best ambient-air-stable performance among those of all low-temperature carbon electrode-based PSCs reported so far.

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Mehrkhah, Roya, Elaheh K. Goharshadi i Mojtaba Mohammadi. "Highly efficient solar desalination and wastewater treatment by economical wood-based double-layer photoabsorbers". Journal of Industrial and Engineering Chemistry 101 (wrzesień 2021): 334–47. http://dx.doi.org/10.1016/j.jiec.2021.05.049.

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Jamil, Aida, Johannes Schläfer, Yakup Gönüllü, Ashish Lepcha i Sanjay Mathur. "Precursor-Derived Rare Earth Metal Pyrochlores: Nd2Sn2O7 Nanofibers and Thin Films As Efficient Photoabsorbers". Crystal Growth & Design 16, nr 9 (22.08.2016): 5260–67. http://dx.doi.org/10.1021/acs.cgd.6b00815.

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Banotra, Arun, i Naresh Padha. "Development of SnS nanocrystals and tuning of parameters for use as spectral selective photoabsorbers". Journal of Crystal Growth 534 (marzec 2020): 125460. http://dx.doi.org/10.1016/j.jcrysgro.2019.125460.

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Grigoryan, Bagrat, Samantha J. Paulsen, Daniel C. Corbett, Daniel W. Sazer, Chelsea L. Fortin, Alexander J. Zaita, Paul T. Greenfield i in. "Multivascular networks and functional intravascular topologies within biocompatible hydrogels". Science 364, nr 6439 (2.05.2019): 458–64. http://dx.doi.org/10.1126/science.aav9750.

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Solid organs transport fluids through distinct vascular networks that are biophysically and biochemically entangled, creating complex three-dimensional (3D) transport regimes that have remained difficult to produce and study. We establish intravascular and multivascular design freedoms with photopolymerizable hydrogels by using food dye additives as biocompatible yet potent photoabsorbers for projection stereolithography. We demonstrate monolithic transparent hydrogels, produced in minutes, comprising efficient intravascular 3D fluid mixers and functional bicuspid valves. We further elaborate entangled vascular networks from space-filling mathematical topologies and explore the oxygenation and flow of human red blood cells during tidal ventilation and distension of a proximate airway. In addition, we deploy structured biodegradable hydrogel carriers in a rodent model of chronic liver injury to highlight the potential translational utility of this materials innovation.

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22

Gerosa, Matteo, Francois Gygi, Marco Govoni i Giulia Galli. "The role of defects and excess surface charges at finite temperature for optimizing oxide photoabsorbers". Nature Materials 17, nr 12 (29.10.2018): 1122–27. http://dx.doi.org/10.1038/s41563-018-0192-4.

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Kölbach, Moritz, Hannes Hempel, Karsten Harbauer, Markus Schleuning, Andrei Petsiuk, Katja Höflich, Victor Deinhart i in. "Grain Boundaries Limit the Charge Carrier Transport in Pulsed Laser Deposited α-SnWO4 Thin Film Photoabsorbers". ACS Applied Energy Materials 3, nr 5 (20.04.2020): 4320–30. http://dx.doi.org/10.1021/acsaem.0c00028.

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Ren, Dingkun, Xiao Meng, Zixuan Rong, Minh Cao, Alan C. Farrell, Siddharth Somasundaram, Khalifa M. Azizur-Rahman, Benjamin S. Williams i Diana L. Huffaker. "Uncooled Photodetector at Short-Wavelength Infrared Using InAs Nanowire Photoabsorbers on InP with p–n Heterojunctions". Nano Letters 18, nr 12 (16.11.2018): 7901–8. http://dx.doi.org/10.1021/acs.nanolett.8b03775.

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Phan, Thi Tuong Vy. "A Novel One-Step Green Method to Synthesis of Palladium Nanoparticles". Materials Proceedings 4, nr 1 (15.11.2020): 57. http://dx.doi.org/10.3390/iocn2020-07860.

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Palladium nanoparticles (PdNPs) are one of the most attractive metal nanomaterials because of their excellent physicochemical properties. PdNPs have been studied for many different applications such as Suzuki cross-coupling reactions, hydrogen purification/storage/sensing, CO oxidation, fuel cells, prodrug activation, and antimicrobial therapy. Recently, PdNPs have been explored as photoabsorbers for photothermal therapy and photoacoustic imaging in the treatment of cancer. Herein, we reported a scalable, efficient, green, and one-step method to synthesize PdNPs. The chitosan polymer was used as a stabilizer and vitamin C was used as a reducing agent. Interestingly, the reaction temperature can be adjusted to the size of PdNPs. When the reaction temperature was increased from 25 °C to 95 °C, the morphology of resulted PdNPs changed from a flower shape to a spherical shape and their nanoparticles’ sizes decreased from 64 nm to 29 nm. The characterization revealed that the obtained PdNPs were relatively uniform in size, shape, and stability in an aqueous solution.

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Adjogri, Shadrack J., i Edson L. Meyer. "Chalcogenide Perovskites and Perovskite-Based Chalcohalide as Photoabsorbers: A Study of Their Properties, and Potential Photovoltaic Applications". Materials 14, nr 24 (18.12.2021): 7857. http://dx.doi.org/10.3390/ma14247857.

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In 2015, a class of unconventional semiconductors, Chalcogenide perovskites, remained projected as possible solar cell materials. The MAPbI3 hybrid lead iodide perovskite has been considered the best so far, and due to its toxicity, the search for potential alternatives was important. As a result, chalcogenide perovskites and perovskite-based chalcohalide have recently been considered options and potential thin-film light absorbers for photovoltaic applications. For the synthesis of novel hybrid perovskites, dimensionality tailoring and compositional substitution methods have been used widely. The study focuses on the optoelectronic properties of chalcogenide perovskites and perovskite-based chalcohalide as possibilities for future photovoltaic applications.

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27

Xiang, Chengxiang, Joel Haber, Martin Marcin, Slobodan Mitrovic, Jian Jin i John M. Gregoire. "Mapping Quantum Yield for (Fe–Zn–Sn–Ti)Ox Photoabsorbers Using a High Throughput Photoelectrochemical Screening System". ACS Combinatorial Science 16, nr 3 (12.02.2014): 120–27. http://dx.doi.org/10.1021/co400081w.

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Yun, Wan Su, Ji-Ho Park, Dong-Kwon Lim, Cheol-Hee Ahn, In-Cheol Sun i Kwangmeyung Kim. "How Did Conventional Nanoparticle-Mediated Photothermal Therapy Become “Hot” in Combination with Cancer Immunotherapy?" Cancers 14, nr 8 (18.04.2022): 2044. http://dx.doi.org/10.3390/cancers14082044.

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One of the promising cancer treatment methods is photothermal therapy (PTT), which has achieved good therapeutic efficiency through nanoparticle-based photoabsorbers. Because of the various functions of nanoparticles, such as targeting properties, high light-to-heat conversion, and photostability, nanoparticle-mediated PTT successfully induces photothermal damage in tumor tissues with minimal side effects on surrounding healthy tissues. The therapeutic efficacy of PTT originates from cell membrane disruption, protein denaturation, and DNA damage by light-induced heat, but these biological impacts only influence localized tumor areas. This conventional nanoparticle-mediated PTT still attracts attention as a novel cancer immunotherapy, because PTT causes immune responses against cancer. PTT-induced immunogenic cell death activates immune cells for systemic anti-cancer effect. Additionally, the excellent compatibility of PTT with other treatment methods (e.g., chemotherapy and immune checkpoint blockade therapy) reinforces the therapeutic efficacy of PTT as combined immunotherapy. In this review, we investigate various PTT agents of nanoparticles and compare their applications to reveal how nanoparticle-mediated PTT undergoes a transition from thermotherapy to immunotherapy.

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Becker, J. P., B. Turan, V. Smirnov, K. Welter, F. Urbain, J. Wolff, S. Haas i F. Finger. "A modular device for large area integrated photoelectrochemical water-splitting as a versatile tool to evaluate photoabsorbers and catalysts". Journal of Materials Chemistry A 5, nr 10 (2017): 4818–26. http://dx.doi.org/10.1039/c6ta10688a.

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We present a stand-alone integrated solar water-splitting device with an active area of 64 cm² and a long-term stable operation. The modular setup of the device provides a versatile tool to integrate and evaluate various combinations of photoelectrodes and catalysts.

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Zhang, Pingzhi, Zhufeng Hou, Li Jiang, Jack Yang, Wissam A. Saidi, Oleg V. Prezhdo i Wei Li. "Weak Anharmonicity Rationalizes the Temperature-Driven Acceleration of Nonradiative Dynamics in Cu₂ZnSnS₄ Photoabsorbers". ACS Applied Materials & Interfaces 13, nr 51 (17.12.2021): 61365–73. http://dx.doi.org/10.1021/acsami.1c21526.

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Choi, Ji Hoon, Dong Su Kim, Young Been Kim, Sung Hyeon Jung, Swagotom Sarker, Nishad G. Deshpande, Hak Hyeon Lee, Hee Won Suh i Hyung Koun Cho. "Bundle-Type Columnar Cu2O Photoabsorbers with Vertical Grain Boundaries Fabricated Using Instant Strike-Processed Metallic Seeds and Their Enhanced Photoelectrochemical Efficiency". ACS Sustainable Chemistry & Engineering 9, nr 18 (23.04.2021): 6390–99. http://dx.doi.org/10.1021/acssuschemeng.1c00931.

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Song, Zhaonng, Chongwen Li, Lei Chen i Yanfa Yan. "(Invited) Monolithic All-Perovskite Tandem Cells for Unassisted Water Splitting". ECS Meeting Abstracts MA2022-02, nr 48 (9.10.2022): 1800. http://dx.doi.org/10.1149/ma2022-02481800mtgabs.

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The past decade has witnessed a rapid evolution of research on metal halide perovskite-based optoelectronic and energy devices. In light of this remarkable progress, photoelectrochemical (PEC) cells based on halide perovskite photoabsorbers have recently emerged as a promising solar fuel technology. Notably, the bandgap tunability and low-temperature processing make monolithic all-perovskite tandem cells ideal candidates for achieving efficient, cost-effective, unassisted solar-driven water electrolysis devices. Here, we report our progress on fabricating monolithic all-perovskite tandem cells consisting of two solution-processed perovskite subcells for unassisted water-splitting applications. The all-perovskite tandem devices are achieved by monolithically integrating a wide-bandgap (1.7 – 2.1 eV) Pb-based mixed-halide (Br-I) perovskite top subcell and a narrower-bandgap (1.25 - 1.55 eV) bottom subcell based on Pb-based or mixed Pb-Sn iodide perovskites. Varying the halide perovskite composition for each subcell enables us to tailor the photovoltaic performance of the tandem devices. We demonstrate that all-perovskite tandem devices with various bandgap compositions can deliver open-circuit voltages of more than 2 V. The high photovoltage provides a sufficient overpotential to drive unassisted PEC water splitting with a solar-to-hydrogen conversion efficiency of more than 10%. Additionally, we show that proper water-impermeable encapsulants are needed to prevent degradation of the halide perovskite absorbers in an aqueous environment and enable a long operational lifetime.

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Chen, Yikai, Ke Sun, Heather Audesirk, Chengxiang Xiang i Nathan S. Lewis. "A quantitative analysis of the efficiency of solar-driven water-splitting device designs based on tandem photoabsorbers patterned with islands of metallic electrocatalysts". Energy & Environmental Science 8, nr 6 (2015): 1736–47. http://dx.doi.org/10.1039/c5ee00311c.

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Chen, Zejie, Sam Keene, William Gaieck, Gabriel S. Phun, Robert Stinson, William D. H. Stinson, Yinxian Wang i in. "(Invited) Optimization of Z-Scheme Photocatalytic Reactors for Solar Water Splitting". ECS Meeting Abstracts MA2022-01, nr 36 (7.07.2022): 1553. http://dx.doi.org/10.1149/ma2022-01361553mtgabs.

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The U.S. Department of Energy recently announced its first Energy Earthshot on Clean Hydrogen, with a cost target of $1/kg-H2 by 2031. Assuming future utility-scale grid electricity prices from photovoltaics ($0.02/kWh), 80% of the cost of H2 would come from performing low-temperature water electrolysis at its thermoneutral voltage, with zero additional overpotential. This fact motivates alternative, less-expensive means of using light to generate mobile charge carriers than photovoltaics, and reactor designs with exceedingly low capital costs, which we recently invented. Systems that use low capital cost reactors benefit from low-voltage operation, which represents a paradigm shift from current state-of-the-art electrolyzers that aim to operate at high current densities. Analytical models predict that solar photocatalytic water splitting inherently exhibits such low-voltage operation through use of an ensemble of optically thin photoabsorbers, which results in larger overall solar-to-hydrogen conversion efficiencies in comparison to optically thick designs. In efforts to attain these predicted higher efficiencies, we are performing detailed studies on the properties of state-of-the-art doped SrTiO3 photocatalyst particles. During my talk, I will share our recent efforts in atomic-layer deposited ultrathin oxide coatings to impart redox selectivity and materials stability, single-photocatalyst-particle current–potential behavior and mobile charge carrier properties, and atomic-level information on dopant distributions and materials interfaces obtained from electron microscopies and X-ray spectroscopies. Collectively our discoveries provide new design guidelines and additional research pathways for the development of effective composite materials to serve as active components in techno-economically viable artificial photosynthetic devices.

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Chen, Zejie, Sam Keene, William Gaieck, Gabriel S. Phun, Robert Stinson, William D. H. Stinson, Yinxian Wang i in. "Optimization of Z-Scheme Photocatalytic Reactors for Solar Water Splitting". ECS Meeting Abstracts MA2022-02, nr 48 (9.10.2022): 1869. http://dx.doi.org/10.1149/ma2022-02481869mtgabs.

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The U.S. Department of Energy recently announced its first Energy Earthshot on Clean Hydrogen, with a cost target of $1/kg-H2 by 2031. Assuming future utility-scale grid electricity prices from photovoltaics ($0.02/kWh), 80% of the cost of H2 would come from performing low-temperature water electrolysis at its thermoneutral voltage, with zero additional overpotential. This fact motivates alternative, less-expensive means of using light to generate mobile charge carriers than photovoltaics, and reactor designs with exceedingly low capital costs, like those we recently invented. Systems using low capital cost reactors benefit from low-voltage operation, which represents a paradigm shift from current state-of-the-art electrolyzers that aim to operate at high current densities. Analytical models predict that solar photocatalytic water splitting inherently operates at low voltages through use of an ensemble of optically thin photoabsorbers each operating at a low rate. Collectively the ensemble exhibits larger overall solar-to-hydrogen conversion efficiencies in comparison to optically thick designs. In efforts to attain these predicted higher efficiencies, we are performing detailed studies on the properties of state-of-the-art doped SrTiO3 and BiVO4 photocatalyst particles. During my talk, I will share our recent efforts in atomic-layer deposited ultrathin oxide coatings to impart redox selectivity and materials stability, single-photocatalyst-particle current–potential behavior and mobile charge carrier properties, and atomic-level information on dopant distributions and materials interfaces obtained from electron microscopies and X-ray spectroscopies. Collectively, our discoveries provide new design guidelines and additional research pathways for the development of effective composite materials to serve as active components in techno-economically viable artificial photosynthetic devices.

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Kranthiraja, Kakaraparthi, Sujan Aryal, Mahdi Temsal, Mohin Sharma i Anupama B. Kaul. "Optical Property and Stability Study of CH3(CH2)3NH3)2(CH3NH3)3Pb4I13 Ruddlesden Popper 2D Perovskites for Photoabsorbers and Solar Cells and Comparison with 3D MAPbI3". Solar 2, nr 4 (20.09.2022): 385–400. http://dx.doi.org/10.3390/solar2040023.

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Three dimensional (3D) perovskite solar cells (PSCs) are a promising candidate for third-generation photovoltaics (PV) technology, which aims to produce efficient photon conversion devices to electricity using low-cost fabrication processes. Hybrid organic-inorganic perovskites for-lmed using low-cost solution processing are explored here, which have experienced a stupendous rise in power conversion efficiency (PCE) over the past decade and serve as a prime candidate for third-generation PV systems. While significant progress has been made, the inherent hygroscopic nature and stability issue of the 3D perovskites (3DPs) are an impediment to its commercialization. In this work, we have studied two-dimensional (2D) organometallic halide (CH3(CH2)3NH3)2(CH3NH3)n−1PbnI3n+1) layered perovskites in the Ruddlesden Popper structure, represented as BA2MA3Pb4I13 for the n = 4 formulation, for both photoabsorbers in a two-terminal architecture and solar cells, given that these material are considered to be inherently more stable. In the two-terminal photo absorber devices, the photocurrent and responsivity were measured as a function of incoming laser wavelength, where the location of the peak current was correlated to the emission spectrum arising from the 2DP film using photoluminescence (PL) spectroscopy. The 2D (BA)2(MA)3Pb4I13 films were then integrated into an n-i-p solar cell architecture, and PV device figures of merit tabulated, while our 3D MAPbI3 served as the reference absorber material. A comparative study of the 3DP and 2DP film stability was also conducted, where freshly synthesized films were inspected on FTO substrates and compared to those exposed to elevated humidity levels, and material stability was gauged using various material characterization probes, such as PL and UV-Vis optical absorption spectroscopy, scanning electron microscopy and X-ray diffraction. While the PCE of the 3D-PSCs was higher than the 2D-PSCs, our results confirm the enhanced environmental stability of the 2DP absorber films compared to the 3DP absorbers, suggesting their promise to address the stability issue broadly encountered in 3D PSCs toward third-generation PV technology.

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Adhikari, N., S. Bereznev, J. Kois, O. Volobujeva, Taavi Raadik, R. Traksmaa, A. Tverjanovich i A. Öpik. "PVD of N-CuIn3Se5 Photoabsorber Films". Key Engineering Materials 495 (listopad 2011): 339–42. http://dx.doi.org/10.4028/www.scientific.net/kem.495.339.

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Thin films of Cu-In-Se (CISe) photoabsorber with overall composition of CuIn3Se5 were deposited onto glass/ITO substrates by using physical vapour deposition (PVD) technique. Thermal conditions for the substrates during deposition process and following thermal annealing were selected with the purpose to prepare polycrystalline n-CuIn3Se5 photoabsorber layers for the hybrid photovoltaic structures based on inorganic photoabsorber and conductive polymer functional layers. It was found, that the CISe layers deposited at the temperature of substrate of 200 °C and annealed at the temperature range of 450-500 oC in vacuum and double annealed in argon and vacuum at 500 oC demonstrate high photosensitivity and photoconductivity under white light illumination of 100 mW/cm2 intensity. Obtained results show the chalcopyrite structure of prepared photoabsorber films with good adhesion to the glass/ITO substrate.

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Kuhar, Korina, Andrea Crovetto, Mohnish Pandey, Kristian S. Thygesen, Brian Seger, Peter C. K. Vesborg, Ole Hansen, Ib Chorkendorff i Karsten W. Jacobsen. "Sulfide perovskites for solar energy conversion applications: computational screening and synthesis of the selected compound LaYS3". Energy & Environmental Science 10, nr 12 (2017): 2579–93. http://dx.doi.org/10.1039/c7ee02702h.

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Choi, Junghyun, Pitchaimuthu Sudhagar, Joo Hyun Kim, Jiseok Kwon, Jeonghyun Kim, Chiaki Terashima, Akira Fujishima, Taeseup Song i Ungyu Paik. "WO3/W:BiVO4/BiVO4 graded photoabsorber electrode for enhanced photoelectrocatalytic solar light driven water oxidation". Physical Chemistry Chemical Physics 19, nr 6 (2017): 4648–55. http://dx.doi.org/10.1039/c6cp08199a.

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Gutkowski, R., C. Khare, F. Conzuelo, Y. U. Kayran, A. Ludwig i W. Schuhmann. "Unraveling compositional effects on the light-induced oxygen evolution in Bi(V–Mo–X)O4 material libraries". Energy & Environmental Science 10, nr 5 (2017): 1213–21. http://dx.doi.org/10.1039/c7ee00287d.

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The influence of elements Mo and W on the PEC response of BiVO₄ based thin films is visualized concerning the photocurrent and in situ detection of locally evolved O₂ at a photoabsorber.

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Lahlali, S., L. Essaleh, M. Belaqziz, H. Chehouani, A. Alimoussa, K. Djessas, B. Viallet, J. L. Gauffier i S. Cayez. "Dielectric and modulus analysis of the photoabsorber Cu2SnS3". Physica B: Condensed Matter 526 (grudzień 2017): 54–58. http://dx.doi.org/10.1016/j.physb.2017.09.069.

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Kois, Julia, Sergei Bereznev, Jelena Maricheva i Naidu Revathi. "Electrochemical and photoelectrochemical characterization of SnS photoabsorber films". Materials Science in Semiconductor Processing 58 (luty 2017): 76–81. http://dx.doi.org/10.1016/j.mssp.2016.10.036.

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Ibrahim, Raman, Ibrahim Raman, Mohd Hafizul Hanif Ramlee, Mohammad Asraf Shaik Mohamed, Mustaffa Ibrahim i Wahab Saidin. "Evaluation on the Photoabsorber Composition Effect in Projection Microstereolithography". Applied Mechanics and Materials 159 (marzec 2012): 109–14. http://dx.doi.org/10.4028/www.scientific.net/amm.159.109.

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This paper presents a research progress on composition photoabsorber effect the solidification time and layer thickness of 3D structures fabrication using Liquid Crystal Display (LCD) projector as energy light source to initiate the photoreactive polymer. The polymer based material with composition of 1,6-Hexanediol dicrylate, Phenylbis(2,4,6-trimethylbenzoyl)- phosphine oxide with varied Sudan I concentrations was used to build 3D structures. The structure was fabricated using a three different photo absorber composition of Sudan I then the photoreactive polymer solidification phe¬nomena was evaluated. Based on the result obtained, higher exposed time of the photo absorber will reduced the surface roughness values and increased the solidification layer time. This work represents that photo absorber composition solution gave a different characteristics for 3D microstructure fabrication.

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Gonçalves, Bruna F., Viviana Sousa, José Virtuoso, Evgeny Modin, Oleg I. Lebedev, Gabriela Botelho, Sascha Sadewasser, Laura M. Salonen, Senentxu Lanceros-Méndez i Yury V. Kolen’ko. "Towards All-Non-Vacuum-Processed Photovoltaic Systems: A Water-Based Screen-Printed Cu(In,Ga)Se2 Photoabsorber with a 6.6% Efficiency". Nanomaterials 13, nr 13 (23.06.2023): 1920. http://dx.doi.org/10.3390/nano13131920.

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During the last few decades, major advances have been made in photovoltaic systems based on Cu(In,Ga)Se2 chalcopyrite. However, the most efficient photovoltaic cells are processed under high-energy-demanding vacuum conditions. To lower the costs and facilitate high-throughput production, printing/coating processes are proving to be effective solutions. This work combined printing, coating, and chemical bath deposition processes of photoabsorber, buffer, and transparent conductive layers for the development of solution-processed photovoltaic systems. Using a sustainable approach, all inks were formulated using water and ethanol as solvents. Screen printing of the photoabsorber on fluorine-doped tin-oxide-coated glass followed by selenization, chemical bath deposition of the cadmium sulfide buffer, and final sputtering of the intrinsic zinc oxide and aluminum-doped zinc oxide top conductive layers delivered a 6.6% maximum efficiency solar cell, a record for screen-printed Cu(In,Ga)Se2 solar cells. On the other hand, the all-non-vacuum-processed device with spray-coated intrinsic zinc-oxide- and tin-doped indium oxide top conductive layers delivered a 2.2% efficiency. The given approaches represent relevant steps towards the fabrication of sustainable and efficient Cu(In,Ga)Se2 solar cells.

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Kuroda, Yukihito, Osamu Shimomura, Hiromitsu Nakahashi, Tomoaki Furuta, Yoshihiro Miyazaki, Takahito Nakajima, Hiroaki Tateno i Tatsuya Oda. "Abstract 5328: Near-infrared photoimmunotherapy for pancreatic cancer: Targeting cell surface glycans using lectin-photoabsorber conjugate (LPC)". Cancer Research 82, nr 12_Supplement (15.06.2022): 5328. http://dx.doi.org/10.1158/1538-7445.am2022-5328.

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Abstract Introduction: Since protein targets in cancer therapy largely have been explored, glycans would be attractive alternative targets. We had previously discovered a fucosylated glycan epitope highly expressed on pancreatic cancer cells, and a lectin probe called rBC2LCN, which can be used as a specific targeting bullet to this glycan (Shimomura O, Oda T, et al: Mol Cancer Ther 2018). We now then hypothesized that, this lectin-based cancer-targeting strategies should be reasonably applicable to near-infrared photoimmunotherapy (NIR-PIT). NIR-PIT have already developed using a conjugate of a photoabsorber, IRdye700DX (IR700), and a monoclonal antibody which recognizes protein antigens on the target cells. In this study, we firstly developed a lectin-photoabsorber conjugate (BC2-IR700) and investigated a new cancer therapy targeting cancer cell surface glycans. Material and Methods: We developed BC2-IR700 by conjugation of rBC2LCN lectin with IR700 NHS ester. A pancreatic cancer cell line Capan-1 was used as a model which is bound by rBC2LCN. The cytotoxic effect of NIR-PIT with BC2-IR700 was first evaluated in vitro. We then evaluated the anti-cancer effect of BC2-IR700 in vivo using pancreatic cancer xenograft mice including subcutaneous tumor model. Results: The product of BC2-IR700 was confirmed by SDS-PAGE, that showed reasonable 16KDa sharp band with clear fluorescence intensity. After incubation with BC2-IR700, Capan-1 cells showed high fluorescence signal, which was confirmed with flow cytometry and fluorescence microscopy. BC2-IR700 was detected on the cell surface of Capan-1 after incubation for 1h. Immediately after exposure to NIR light, the cell death of Capan-1 was induced and the cytotoxicity significantly increased in a light-dose-dependent manner. After intravenous administration of BC2-IR700 into pancreatic cancer xenograft mice, BC2-IR700 was observed in vivo fluorescence imaging to be accumulated in tumor. NIR-PIT was performed by exposing to NIR light (100 J/cm2) at 6 h following BC2-IR700 intravenous administration (20 μg/mice). Tumor growth was significantly inhibited in the NIR-PIT treatment group compared with the other control groups such as no treatment, BC2-IR700 only, and NIR light exposure only (P < 0.05). Conclusions: The lectin-photoabsorber conjugate, BC2-IR700, was able to be sufficiently applied for NIR-PIT in in vivo mouse model. The novel NIR-PIT targeting cell surface glycans could be a promising therapeutic strategy for the treatment of pancreatic cancer. Citation Format: Yukihito Kuroda, Osamu Shimomura, Hiromitsu Nakahashi, Tomoaki Furuta, Yoshihiro Miyazaki, Takahito Nakajima, Hiroaki Tateno, Tatsuya Oda. Near-infrared photoimmunotherapy for pancreatic cancer: Targeting cell surface glycans using lectin-photoabsorber conjugate (LPC) [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 5328.

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Hwang, Shinjae, Anders B. Laursen, Spencer H. Porter, Yang Hongbin, Mengjun Li, Viacheslav Manichev, Karin U. D. Calvinho i in. "Titanium Nitride As a Conducting Interfacial Layer between Hydrogen Evolution Catalysts and Silicon Photocathodes for Stable Solar-to-Hydrogen Water Splitting Devices". ECS Meeting Abstracts MA2018-01, nr 31 (13.04.2018): 1903. http://dx.doi.org/10.1149/ma2018-01/31/1903.

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The development of a solar-driven water splitting device that replaces costly noble metal electrodes, while achieving high performance and stable operation, is a major challenge. Transition metal phosphides (TMP) are being developed as low-cost hydrogen evolution reaction (HER) catalysts, but no reports have demonstrated their successful integration with a photoabsorber achieving stable performance in liquid junction electrolytes. Here, we report on a monolithic junction consisting of cubic-NiP2 HER catalyst : TiN ultrathin-film : Si photoabsorber. Crystalline TiN creates an electron conducting, near-transparent film that effectively hinders atomic diffusion during fabrication and maintains stable interfaces. Crystalline cubic-NiP2 on TiN/n+p-Si retains 97% of the bare Si’s photovoltage, a comparable Jsc to bare Si, and achieves a turnover frequency of 1.04 H2 site-1s−1 at −100 mV applied electrical potential. When used in 0.5 M H2SO4 it requires only −150 mV overpotential beyond Pt/TiN/n+p-Si benchmark to reach an HER photocurrent density of −10 mA/cm2. This photocathode maintains a stable H2 photocurrent (±10%) for at least 125 hours, the duration of test. Transmission electron microscopy, voltammetry, ion scattering, AFM and XPS give information on the physical properties responsible for the observed activity and stable performance of these interfaces.

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Wang, Kai, Yantao Shi, Hong Zhang, Yujin Xing, Qingshun Dong i Tingli Ma. "Selenium as a photoabsorber for inorganic–organic hybrid solar cells". Phys. Chem. Chem. Phys. 16, nr 42 (17.09.2014): 23316–19. http://dx.doi.org/10.1039/c4cp02821j.

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Naidu, Revathi, Mihkel Loorits, Erki Kärber, Olga Volobujeva, Jaan Raudoja, Natalia Maticiuc, Sergei Bereznev i Enn Mellikov. "Impact of vacuum and nitrogen annealing on HVE SnS photoabsorber films". Materials Science in Semiconductor Processing 71 (listopad 2017): 252–57. http://dx.doi.org/10.1016/j.mssp.2017.08.004.

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Arnold, Michael S. "(Invited) Increasing the Efficiency of Semiconducting Carbon Nanotube Photoabsorber-Based Photovoltaics". ECS Meeting Abstracts MA2020-01, nr 7 (1.05.2020): 686. http://dx.doi.org/10.1149/ma2020-017686mtgabs.

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Травкин, В. В., А. И. Коптяев, Г. Л. Пахомов, П. В. Волков, Д. А. Семиков i А. Ю. Лукьянов. "Экспериментальное исследование процессов теплопереноса в тонкопленочных структурах на основе перовскитов методом низкокогерентной тандемной интерферометрии". Письма в журнал технической физики 47, nr 23 (2021): 31. http://dx.doi.org/10.21883/pjtf.2021.23.51781.18957.

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The heat transfer in an archetypal system ‘solar cell/environment’ was analyzed, in which the solar cell was a thin-film multilayer structure with a hybrid lead-iodide perovskite photoabsorber. The temperature field was mathematically modeled and heat maps of the cell at various irradiation intensities were calculated. It was found that the heating of the structure by a diffuse insolation has a maximum at about half of the overall thickness, but it does not exceed the threshold critical for the stability of the perovskite phase owing to dissipation into the environment.

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