Littérature scientifique sur le sujet « ZnO photoanode »
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Articles de revues sur le sujet "ZnO photoanode"
Thor, Shen-Hui, Li-Ngee Ho, Soon-An Ong, Che Zulzikrami Azner Abidin et Cheng-Yong Heah. « Comparative efficiency study of photoanodes in the photocatalytic fuel cell integrated electro-Fenton hybrid system ». IOP Conference Series : Earth and Environmental Science 1135, no 1 (1 janvier 2023) : 012006. http://dx.doi.org/10.1088/1755-1315/1135/1/012006.
Texte intégralMagiswaran, Kaiswariah, Mohd Natashah Norizan, Norsuria Mahmed, Ili Salwani Mohamad, Siti Norhafizah Idris, Mohd Faizul Mohd Sabri, Nowshad Amin et al. « Controlling the Layer Thickness of Zinc Oxide Photoanode and the Dye-Soaking Time for an Optimal-Efficiency Dye-Sensitized Solar Cell ». Coatings 13, no 1 (22 décembre 2022) : 20. http://dx.doi.org/10.3390/coatings13010020.
Texte intégralKim, Kiwon, et Jun Hyuk Moon. « Bismuth Vanadate/Zinc Oxide Heterojunction Electrodes for High Solar Water-Splitting Efficiency at Low Bias Potential ». ECS Meeting Abstracts MA2018-01, no 31 (13 avril 2018) : 1894. http://dx.doi.org/10.1149/ma2018-01/31/1894.
Texte intégralSilwal, Surendra Bikram, Rameshwar Adhikari, Prakash Lamichhane et Netra Lal Bhandari. « Natural dyes as photo-sensitizer in solar cells ». BIBECHANA 17 (1 janvier 2020) : 28–33. http://dx.doi.org/10.3126/bibechana.v17i0.25599.
Texte intégralZhao, Su Qin, Hai Qin Li, Yuan Liang Ma, Yan Ma, Xiao Lei Li et Hui Ming Ji. « Study of Natural Dye Sensitized Solar Cells with TiO2/ZnO Composite Thin Film as Photoanode ». Advanced Materials Research 1058 (novembre 2014) : 248–52. http://dx.doi.org/10.4028/www.scientific.net/amr.1058.248.
Texte intégralBeedri, Niyamat I., Prashant K. Baviskar, Abhijit T. Supekar, Inamuddin, Sandesh R. Jadkar et Habib M. Pathan. « Bilayered ZnO/Nb2O5 photoanode for dye sensitized solar cell ». International Journal of Modern Physics B 32, no 19 (18 juillet 2018) : 1840046. http://dx.doi.org/10.1142/s0217979218400465.
Texte intégralMohamad, Ili Salwani, Mohd Natashah Norizan, Norsuria Mahmed, Nurnaeimah Jamalullail, Dewi Suriyani Che Halin, Mohd Arif Anuar Mohd Salleh, Andrei Victor Sandu, Madalina Simona Baltatu et Petrica Vizureanu. « Enhancement of Power Conversion Efficiency with Zinc Oxide as Photoanode and Cyanococcus, Punica granatum L., and Vitis vinifera as Natural Fruit Dyes for Dye-Sensitized Solar Cells ». Coatings 12, no 11 (21 novembre 2022) : 1781. http://dx.doi.org/10.3390/coatings12111781.
Texte intégralSafriani, Lusi. « Pengaruh Penambahan Nanopartikel ZnO Terhadap Morfologi Nanokomposit TiO2/ZnO ». Jurnal Ilmu dan Inovasi Fisika 6, no 2 (8 août 2022) : 182–88. http://dx.doi.org/10.24198/jiif.v6i2.41201.
Texte intégralZhao, Shuaitongze, et Shifeng Xu. « Semiconductor Photoanode Photoelectric Properties of Methanol Fuel Cells ». Journal of Nanoelectronics and Optoelectronics 16, no 1 (1 janvier 2021) : 72–79. http://dx.doi.org/10.1166/jno.2021.2906.
Texte intégralJiao, Yu, Guang Chao Wang, Feng Rong Li et Shu Hong Xie. « Efficiency Enhancement of ZnO Nanocrystalline Dye-Sensitized Solar Cells by Post-Treatment ». Materials Science Forum 852 (avril 2016) : 901–7. http://dx.doi.org/10.4028/www.scientific.net/msf.852.901.
Texte intégralThèses sur le sujet "ZnO photoanode"
Williamson, Andrew. « Carrier dynamics, persistent photoconductivity and defect chemistry at zinc oxide photoanodes ». Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/carrier-dynamics-persistent-photoconductivity-and-defect-chemistry-at-zinc-oxide-photoanodes(ec59e44c-0f17-40e5-ab34-871afbea0ea9).html.
Texte intégralShih, Li-Chi, et 施力綺. « Fabrication of ZnO Composite Photoanode on Dye Sensitized Solar Cell ». Thesis, 2015. http://ndltd.ncl.edu.tw/handle/ecvq72.
Texte intégral國立虎尾科技大學
電子工程系碩士班
103
In this study, we prepared low-density zinc oxide micron rods (MRs) on the non-seed layer ITO/PEN by hydrothermal. The analyses of field emission scanning electron microscopy show that the average length of the zinc oxide micron rods is 14μm, then used the scraper method to fill the ZnO nanoparticles into the micron rods to prepare the photoelectrode. Zinc oxide micron rods (NPs/MRs) composite electrode was pressed under 418kg / cm2 through mechanical pressure, these improvements are attributed to the multiple functions of the composite structure, including large surface area for sufficient dye adsorption, micron rods for efficient light scattering, and one-dimensional building units for longer electron lifetime. Light-scattering layer can effectively increase the traveling path of incident light, thereby increasing the collision probability between the incident light and the zinc oxide nanoparticles. The zinc oxide nanoparticles film can absorb dye to enhance the photocurrent, therefore zinc oxide micron rods (NPs/MRs) composite structures can effectively enhance the overall dye-sensitized solar cell photocurrent conversion efficiency. From the analysis, with the thickness of zinc oxide film increase, the optical properties will also increase. This is mainly due to the amount of the dye adsorption, when the thickness of the zinc oxide film increase, the dye adsorption will also increase, after illumination, the dye excited electrons increase, this result indicates that the resistivity decrease. From this research, we press and analysis the zinc oxide particles film under mechanical pressure, we found that under 418.8kg/cm2 mechanical pressure the ZnO film achieve the thickness of 33.0μm. After immersed the D149 dye has the best conversion efficiency for dye-sensitized solar cells (DSSCs), which is 2.90%. This result will come up with the best mechanical pressure and thickness of the film then applied to the composite electrode. In order to prepare the composite structure of DSSCs, we use different growth temperature and different time to prepare ZnO micron rods. The growth temperature not only affects the crystalline of zinc oxide, but also improves the surface morphology of the electrode, and different growth time will affect the length of zinc oxide by hydrothermal. The best photoelectric conversion efficiency was found to be 3.46% with the composite structures.
Huang, Po-Yung, et 黃博雍. « ZnO Nanowires as Photoanode Material for Quasi-Solid State Dye-Sensitized Solar Cells ». Thesis, 2010. http://ndltd.ncl.edu.tw/handle/84632239284917085296.
Texte intégral國立清華大學
材料科學工程學系
98
In recent years, much attention has been paid to the development of dye-sensitized solar cells (DSCs) because of their low production cost. In this study, the growth of well-aligned single-crystalline ZnO nanowires (NWs) is realized on bare transparent conductive oxide (TCO) glass substrates by thermal evaporation. Although the NWs provide a good electron transport path, the surface area of the NWs is too small for dye loading. In this study, additional ZnO NWs for backbones of branched NWs were added and a secondary growth was introduced to raise the surface area of the photoanode and enhance the light scattering effect. The Short-circuit current density(JSC) was improved to 5.38 mA/cm2 for the branched NW photoanode from 4.07 mA/cm2 for the bare NW photoanode. The highest conversion efficiency and the fill factor were around 1.57% and 0.50, respectively. On the other hand, liquid electrolytes are usually used in DSCs, rendering leakage and evaporation problems. To solve these problems, solid-state hole transporters, whether organic or inorganic, polymer electrolytes and gel polymer electrolytes have been used to replace liquid electrolytes in many reports. A gel electrolyte with good contact, reasonable conductivity, ease of fabrication, was prepared to make quasi-solid state DSCs. The highest efficiency of 0.7% and the fill factor of 0.54 have been achieved. In comparison with DSCs with liquid electrolytes, the relative low JSC and the efficiency are due to the lower ion diffusion velocity.
Chong, Wen-Jie, et 鍾文介. « Novel Fabrication of Al Doping ZnO Composite Photoanode for Dye Sensitized Solar Cell ». Thesis, 2013. http://ndltd.ncl.edu.tw/handle/wft272.
Texte intégral國立虎尾科技大學
電子工程系碩士班
101
In this study, the composite photo-anode of TiO2 nanoparticles (NPs) and Al-doped ZnO microrods (MRs) was fabricated on fluorine-doped tin oxide (FTO) glass. Al-doped ZnO MRs, length of ~10 μm, grown by hydrothermal method on free seed FTO glass, followed by Doctor blade of TiO2 NPs (diameter of 25 nm), on the MRs surface. The columnar structure of ZnO MRs as a light scattering layer and a channel for transmit rapidly the photoelectron. Light scattering layer can increase the path length of the incident light and enhances the collided probability between the incident light and TiO2 NPs. TiO2 NPs has large surface area to absorb dye and thus enhance the light current. Therefore, TiO2 NPs and ZnO MRs composite photo-anode can enhance the features of dye-sensitized solar cells (DSSCs). Al-doped ZnO microrods arrays with the Al contents in the region of 2.5%-50% were prepared and evaluated as photoanodes for DSSCs. It was found that Al-doping has changed not only electrical properties but also the morphology and structure of the ZnO microrods. to improve the electrode surface morphology, aluminum ion can embed and enhance the electronic conductivity of materials surface polarity, so that microrods electrode to increase the adsorp Hydrothermal growth of Al/Zn 20% microrods increased body surface area, the length of electrode from 4 μm to 9 μm, radius of electrode from 0.5 μm to 1 μm and the short-circuit current of up to 14.72 mA/cm2 from 19.91 mA/cm2. The diameter of the ZnO microrods also changes with the addition of Al. Our results indicate that an appropriate increase in the diameter of the nanorods is favorable due to the reduction in electron transport resistance, which further speeds up electron transport in the ZnO microrods arrays leading to the increase of short-circuit current. In the electrical measurement analysis, when the Al/ZnO of 20% shows the best electrically and also showed the highest zinc oxide dye-sensitized solar cell efficiency of 8.20%.
Yin, Yu-Tung, et 殷瑀彤. « Development of high power conversion efficiency ZnO-based photoanode to the application of dye-sensitized solar cell ». Thesis, 2016. http://ndltd.ncl.edu.tw/handle/30720898371699348934.
Texte intégral國立臺灣科技大學
化學工程系
104
In this study, the growth mechanism of ZnO nanowire arrays (ZnO-NWAs) via chemical solution method under different additives, such as: polyethylenimine (PEI) and ammonia (NH3), has been investigated. By using photoluminescence spectroscopy (PL) and X-ray absorption spectroscopy (XAS), the relation between PL emissions, interstitial zinc defects (Zni) interstitial oxygen defects (Oi) has been investigated. To further improve the quality of ZnO-NWAs, unlike the conventional batch process, a facile continuous flow injection (CFI) process has been conducted to synthesize high-quality ZnO-NAWs. According to the study, the concentration of zinc precursor can be maintained at a constant level in CFI process to provide a steady-state growth environment. High quality and long length ZnO-NWAs can be obtained from CFI process to be the photoanode of ZnO based dye-sensitized solar cells (DSSCs). From the results, the increment of length of ZnO-NWAs could effectively improve the dye absorption amount; however, it also influenced the electron collection efficiency (ηCC). To effectively increase the power conversion efficiency (PCE) of DSSCs with long ZnO-NWAs, the diffusion coefficient (Dn) need to improve simultaneously. In this study, NH3 was added into the chemical solution process and it could effectively reduce the surface defects and increase the diffusion coefficient achieved 1.2x10-2 cm2s-1, which was investigated by Raman spectroscopy and electrochemical impedance spectroscopy (EIS) techniques. ZnO-NWAs with length of 55 μm was synthesized via NH3-assised CFI process to use as photoanode of DSSCs and the PCE achieved 3.92 %. To improve the performance of ZnO-based DSSCs furthermore, a low temperature chemical bath deposition (CBD) was employed to decorate ZnO nanoparticles (ZnO-NPs) on the surfaces of ZnO-NWAs photoanodes for increasing dye loading amount. The PCE of ZnO-NWAs/NPs composite DSSC could achieve 5.25 % under the thickness of 13.5 μm. When the thickness of ZnO-NWAs/NPs composite photoanode increased to 26.2 %, the PCE could achieve 7.53 %, which is the highest value in this study. Finally, we also studied the influence of photoanode surface treatment on the performance of DSSCs. In this study, 4-tert-butylpyridine (t-BP) and water vapor were employed as surface modifier. According to the results, the excess dye molecules could be removed by t-BP treatment to avoid the multilayer adsorption and the carrier transport/transfer properties could effectively be improved by water vapor. The PCE could enhanced from 5.25 % to 6.59% via t-BP and water vapor treatment under the photoanode thickness of 13.5 μm.
Lu, Yen-Wei, et 陸彥瑋. « Preparation of ZnO Nanocrystallite Aggregates for Photoanodes of Dye-Sensitized Solar Cells ». Thesis, 2016. http://ndltd.ncl.edu.tw/handle/6qzbhz.
Texte intégral國立臺北科技大學
有機高分子研究所
104
In this study, a green aqueous solution method was developed to synthesize a family of ZnO nanocrystallite aggregates, whose morphology was determined by the amount of L-histidine introduced into the reaction mixture. The resulting ZnO nanocrystallite aggregates were used to construct single-layered photoanodes for dye-sensitized solar cells (DSSCs) to investigate the effects of aggregate morphology on the photovoltaic performance of DSSCs. The best performing cells were those constructed from spherical nanocrystallite aggregates approximately 400 nm in diameter, obtained by adding 6.45 mM of histidine into the reaction mixture. The highest power conversion efficiency achieved was 4.52%, a 32% improvement over the efficiency attained by devices constructed from commercial ZnO nanoparticles. To enhance the cell efficiency even further, double-layered photoanodes were fabricated using the 400 nm spherical aggregates as a scattering layer and the commercial ZnO nanoparticles as the underlayer. DSSCs based the double-layered photoanodes achieved a power conversion efficiency of 4.93%.
Chou, Chen-Yu, et 周振宇. « Quantum Dot-sensitized Solar Cells : Investigation on Polystyrene-templated TiO2 and ZnO Nanowire/Nanoparticle Photoanodes ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/01485100837331033424.
Texte intégralKuan-WenLin et 林冠文. « Preparation of ZnS/CdS/TiO2 Photoanodes and Application in Photoelectrochemical Hydrogen Production ». Thesis, 2012. http://ndltd.ncl.edu.tw/handle/89859285986145749751.
Texte intégral國立成功大學
化學工程學系碩博士班
100
In this work, ZnS/CdS/TiO2 photoanodes were prepared by pulse electrodeposition from zinc chloride and sodium thiosulfate solutions. The influence of the electrodeposition condition on the composition and structure of photoanode was investgated. Furthermore, the photoelectrochemical activities and hydrogen production rates of the photoanodes were also studied. For the study of ZnS electrodeposition, the preparation conditions including applied voltage, electrolyte composition, pH, input electricity, deposition temperature, and calcination temperature were investigated. The characterizations of photoanodes were investigated by means of XRD, SEM, TEM, XPS and UV techniques. In order to measure the photoactivity of prepared photoanode, a photoelectrochemical (PEC) cell with an electrolyte of 0.25 M Na2S and 0.35 M Na2SO3 were used under illumination by Xe lamp (100 mW/cm2). Moreover, the hydrogen generation experiment was carried out in a two-compartment PEC reactor. The concentration of alkaline electrolyte and the stirring rate in the anode compartment were investigated as well. The results showed that deposition amount, particle size, defects, and surface charges of ZnS layer were strongly influenced by the deposition conditions, which would in advance manipulate the photoactivity of photoanode. It was found that the optimal deposition conditions were: reductive voltage of -0.8 V (vs. Ag/AgCl), the electrolyte of 0.03 M ZnCl2, 0.3 M Na2S2O3, pH3, input reductive electricity of 1 C, deposition temperature of 25 ℃ and calcination temperature of 300 ℃. From the results of hydrogen genetation experiment, it revealed that the hydrogen generation condition was optimized at rotating speed of 300 rpm and the electrolyte of 1 M NaOH, 0.35 M Na2SO3 and 0.25 M Na2S. When the ZnS/CdS/TiO2 photoanode equipped with the PEC cell were operated at the optimal conditions, a maximum photocurrent density (8.17 mA/cm2) and photoconversion efficiency (3.56%) could be achieved. Moreover, the hydrogen generation rate reached to 87.98 mol/cm2-h with a long-term stability. As compared with CdS/TiO2 photoanode, the studied ZnS/CdS/TiO2 photoanode exhibited not only a promotion in photoactivity but also an increase in the hydrogen production rate. The lifetime of photoanode was increased as well, owing to the reduction in photocorrosion of photoanode.
Chen, Po Yen, et 陳柏諺. « The study of Photoelectrochemical Reaction in salt-water splitting using p-type Cu-Zn-Sn-S photocathode/n-type Ag-In-S photoanode system ». Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107CGU05063025%22.&searchmode=basic.
Texte intégralChapitres de livres sur le sujet "ZnO photoanode"
Hung, I.-Ming, Jing-Ru Chen et Yi-Hung Wang. « Characterization and Performance of Li-ZnO Nanofiber and Nanoforest Photoanodes for Dye-Sensitized Solar Cells ». Dans Green Energy Materials Handbook, 253–67. Boca Raton : Taylor & Francis, a CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa, plc, [2019] : CRC Press, 2019. http://dx.doi.org/10.1201/9780429466281-13.
Texte intégralActes de conférences sur le sujet "ZnO photoanode"
Fatima, M. J. Jabeen, C. V. Niveditha et S. Sindhu. « Novel Bi2O3-ZnO solid solutions as photoanode in DSSC ». Dans THE 3RD INTERNATIONAL CONFERENCE ON OPTOELECTRONIC AND NANO MATERIALS FOR ADVANCED TECHNOLOGY (icONMAT 2019). Author(s), 2019. http://dx.doi.org/10.1063/1.5093863.
Texte intégralKhan, Seema, Asif Jamil Ansari et Safia Akhtar Kazmi. « ZnO-rGO-Ag Photoanode for Dye-sensitized Solar cells ». Dans 2022 2nd International Conference on Emerging Frontiers in Electrical and Electronic Technologies (ICEFEET). IEEE, 2022. http://dx.doi.org/10.1109/icefeet51821.2022.9848280.
Texte intégralTimuda, Gerald E., Muchtazar Y. Ihza, Bambang Hermanto, Christina Aprilia, Deni S. Khaerudini, Haryo S. Oktaviano et Muhammad Aziz. « ZnO with spiked-nanosheet structure as photoanode for photoelectrochemical water splitting ». Dans THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIAL AND TECHNOLOGY (ICAMT) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0106287.
Texte intégralYao, Jimmy, Chih-Min Lin et Stuart (. Yin. « Density-controlled ZnO/TiO2nanocomposite photoanode for improving dye-sensitized solar cells performance ». Dans SPIE OPTO, sous la direction de Alexandre Freundlich, Jean-François Guillemoles et Masakazu Sugiyama. SPIE, 2015. http://dx.doi.org/10.1117/12.2085268.
Texte intégralArifin, Zainal, Syamsul Hadi, Hanung Nugroho Jati, Singgih Dwi Prasetyo et Suyitno. « Effect of electrospinning distance to fabricate ZnO nanofiber as photoanode of dye-sensitized solar cells ». Dans THE 5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL, MECHANICAL, ELECTRICAL, AND CHEMICAL ENGINEERING 2019 (ICIMECE 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0000705.
Texte intégralLam, Sze-Mun, Jin-Chung Sin et Honghu Zeng. « Sunlight-driven photocatalytic fuel cell with WO3/rod-like ZnO/Zn photoanode for food wastewater treatment and electricity production ». Dans INTERNATIONAL CONFERENCE ON BIOENGINEERING AND TECHNOLOGY (IConBET2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0078440.
Texte intégralGan, Y. K., N. F. Zakaria, I. S. Mohamad et M. N. Norizan. « The effect of ZnO photoanode solution ageing to the performance of dye-sensitized solar cell (DSSC) ». Dans THE 2ND INTERNATIONAL CONFERENCE ON APPLIED PHOTONICS AND ELECTRONICS 2019 (InCAPE 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/1.5142140.
Texte intégralKhusaini, Muhammad Zuhdi, Hanung Nugroho Jati, Suyitno, Syamsul Hadi et Zainal Arifin. « The influence of electrospinning flow rate parameter on ZnO nanofiber as photoanode of dye-sensitized solar cell ». Dans THE 5TH INTERNATIONAL CONFERENCE ON INDUSTRIAL, MECHANICAL, ELECTRICAL, AND CHEMICAL ENGINEERING 2019 (ICIMECE 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0000702.
Texte intégralBavir, Mohammad, Ali Fattah et Amir Ali Nazari. « An investigation of electrochemical impedance of TiO2-ZnO composite and TiO2-graphene composite in dye-sensitized solar cells, as photoanode ». Dans 2015 30th International Power System Conference (PSC). IEEE, 2015. http://dx.doi.org/10.1109/ipsc.2015.7827768.
Texte intégralGoel, Mohit, et Tanu Mittal. « ZnO Nanostructures Based Photoanodes : Potential Applications in Dye Sensitized Solar Cells ». Dans 2018 International Conference on Intelligent Circuits and Systems (ICICS). IEEE, 2018. http://dx.doi.org/10.1109/icics.2018.00018.
Texte intégral