Relevant bibliographies by topics / Perovskite systems

Academic literature on the topic 'Perovskite systems'

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Published: 10 March 2023

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Journal articles on the topic "Perovskite systems"

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Li, Chonghea, Xionggang Lu, Weizhong Ding, Liming Feng, Yonghui Gao, and Ziming Guo. "Formability of ABX 3 (X = F, Cl, Br, I) halide perovskites." Acta Crystallographica Section B Structural Science 64, no. 6 (November 14, 2008): 702–7. http://dx.doi.org/10.1107/s0108768108032734.

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In this study a total of 186 complex halide systems were collected; the formabilities of ABX 3 (X = F, Cl, Br and I) halide perovskites were investigated using the empirical structure map, which was constructed by Goldschmidt's tolerance factor and the octahedral factor. A model for halide perovskite formability was built up. In this model obtained, for all 186 complex halides systems, only one system (CsF–MnF2) without perovskite structure and six systems (RbF–PbF2, CsF–BeF2, KCl–FeCl2, TlI–MnI2, RbI–SnI2, TlI–PbI2) with perovskite structure were wrongly classified, so its predicting accuracy reaches 96%. It is also indicated that both the tolerance factor and the octahedral factor are a necessary but not sufficient condition for ABX 3 halide perovskite formability, and a lowest limit of the octahedral factor exists for halide perovskite formation. This result is consistent with our previous report for ABO3 oxide perovskite, and may be helpful to design novel halide materials with the perovskite structure.
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Jeon, Il, Kyusun Kim, Efat Jokar, Minjoon Park, Hyung-Woo Lee, and Eric Wei-Guang Diau. "Environmentally Compatible Lead-Free Perovskite Solar Cells and Their Potential as Light Harvesters in Energy Storage Systems." Nanomaterials 11, no. 8 (August 15, 2021): 2066. http://dx.doi.org/10.3390/nano11082066.

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Next-generation renewable energy sources and perovskite solar cells have revolutionised photovoltaics research and the photovoltaic industry. However, the presence of toxic lead in perovskite solar cells hampers their commercialisation. Lead-free tin-based perovskite solar cells are a potential alternative solution to this problem; however, numerous technological issues must be addressed before the efficiency and stability of tin-based perovskite solar cells can match those of lead-based perovskite solar cells. This report summarizes the development of lead-free tin-based perovskite solar cells from their conception to the most recent improvements. Further, the methods by which the issue of the oxidation of tin perovskites has been resolved, thereby enhancing the device performance and stability, are discussed in chronological order. In addition, the potential of lead-free tin-based perovskite solar cells in energy storage systems, that is, when they are integrated with batteries, is examined. Finally, we propose a research direction for tin-based perovskite solar cells in the context of battery applications.
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Zou, Shuangyang, Xiaoan Zhao, Wenze Ouyang, and Shenghua Xu. "Microfluidic Synthesis, Doping Strategy, and Optoelectronic Applications of Nanostructured Halide Perovskite Materials." Micromachines 13, no. 10 (September 30, 2022): 1647. http://dx.doi.org/10.3390/mi13101647.

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Halide perovskites are increasingly exploited as semiconducting materials in diverse optoelectronic applications, including light emitters, photodetectors, and solar cells. The halide perovskite can be easily processed in solution, making microfluidic synthesis possible. This review introduces perovskite nanostructures based on micron fluidic channels in chemical reactions. We also briefly discuss and summarize several advantages of microfluidics, recent progress of doping strategies, and optoelectronic applications of light-sensitive nanostructured perovskite materials. The perspective of microfluidic synthesis of halide perovskite on optoelectronic applications and possible challenges are presented.
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Stroyuk, Oleksandr. "Lead-free hybrid perovskites for photovoltaics." Beilstein Journal of Nanotechnology 9 (August 21, 2018): 2209–35. http://dx.doi.org/10.3762/bjnano.9.207.

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This review covers the state-of-the-art in organo–inorganic lead-free hybrid perovskites (HPs) and applications of these exciting materials as light harvesters in photovoltaic systems. Special emphasis is placed on the influence of the spatial organization of HP materials both on the micro- and nanometer scale on the performance and stability of perovskite-based solar light converters. This review also discusses HP materials produced by isovalent lead(II) substitution with Sn2+ and other metal(II) ions, perovskite materials formed on the basis of M3+ cations (Sb3+, Bi3+) as well as on combinations of M+/M3+ ions aliovalent to 2Pb2+ (Ag+/Bi3+, Ag+/Sb3+, etc.). The survey is concluded with an outlook highlighting the most promising strategies for future progress of photovoltaic systems based on lead-free perovskite compounds.
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Gao, Zhan, Yifan Zheng, Guancheng Huang, Genjie Yang, Xinge Yu, and Junsheng Yu. "Additive Modulated Perovskite Microstructures for High Performance Photodetectors." Micromachines 11, no. 12 (December 10, 2020): 1090. http://dx.doi.org/10.3390/mi11121090.

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Organic-inorganic hybrid perovskites have been widely used as light sensitive components for high-efficient photodetectors due to their superior optoelectronic properties. However, the unwanted crystallographic defects of perovskites typically result in high dark current, and thus limit the performance of the device. Herein, we introduce a simple route of microstructures control in MAPbI3 perovskites that associates with introducing an additive of 3,3,4,4-benzophenonetetracarboxylic dianhydridean (BPTCD) for crystallization adjustment of the perovskite film. The BPTCD additive can facilitate the formation of high-quality perovskite film with a compact and nearly pinhole-free morphology. Through characterizing the molecular interactions, it was found that the carbonyl groups in BPTCD is the key reason that promoted the nucleation and crystallization of MAPbI3. As a result, we obtained high-efficient and stable perovskite photodetectors with low dark current of 9.98 × 10−8 A at −0.5 V, an on/off ratio value of 103, and a high detectivity exceeding 1012 Jones over the visible region.
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Kostopoulou, Athanasia, Konstantinos Brintakis, Nektarios K. Nasikas, and Emmanuel Stratakis. "Perovskite nanocrystals for energy conversion and storage." Nanophotonics 8, no. 10 (July 19, 2019): 1607–40. http://dx.doi.org/10.1515/nanoph-2019-0119.

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AbstractThe high demand for energy consumption in everyday life, and fears of climate change are driving the scientific community to explore prospective materials for efficient energy conversion and storage. Perovskites, a prominent category of materials, including metal halides and perovskite oxides have a significant role as energy materials, and can effectively replace conventional materials. The simultaneous need for new energy materials together with the increased interest for making new devices, and exploring new physics, thrust the research to control the structuring of the perovskite materials at the nanoscale. Nanostructuring of the perovskites offers unique features such as a large surface area, extensive porous structures, controlled transport and charge-carrier mobility, strong absorption and photoluminescence, and confinement effects. These features together with the unique tunability in their composition, shape, and functionalities make perovskite nanocrystals efficient for energy-related applications such as photovoltaics, catalysts, thermoelectrics, batteries, supercapacitor and hydrogen storage systems. The synthesis procedures of perovskite nanostructures in different morphologies is summarized and the energy-related properties and applications are extensively discussed in this paper.
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Mahmoud, Hanan A. Hosni. "Computerized Prediction of Perovskite Performance Using Deep Learning." Electronics 11, no. 22 (November 16, 2022): 3759. http://dx.doi.org/10.3390/electronics11223759.

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Perovskites have exceptional physical and chemical features in different fields. Perovskites have an ABO3 formula with similar sizes of A-site and B-site cations. This research explores the challenges of developing new perovskite solar cells with high performance. Therefore, this article proposes a deep learning model for the prediction of perovskites performance measures. The measures are: energy conversion performance, ABO3 stability, ion volume, and induced oxygen vacancy dimension. These performance measures are very crucial electrochemical reactions in energy conversion in fuel crystals. The challenges in any deep learning model are the lack of the presence of sufficient data and training time. Consequently, in this research, we propose a transfer learning perovskites model. Perovskite performance detection is critical to offer operative energy resources. In the proposed model, the constructed detection model uses a perovskites feature set. The transfer learning model utilizes other materials with large-sized datasets to predict the four performance measures with high accuracy. The output of the transfer learning is then utilized for the proposed deep learning model to predict perovskites performance measures with a small-sized dataset. A dataset of 8500 perovskite samples is utilized in the research. The results prove that a deep learning F2-Score with transfer learning attains high accuracy of 98.95%, recall of 96.91% and F2-score of 97.05%.
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Bidikoudi, Maria, Carmen Simal, and Elias Stathatos. "Low-Toxicity Perovskite Applications in Carbon Electrode Perovskite Solar Cells—A Review." Electronics 10, no. 10 (May 12, 2021): 1145. http://dx.doi.org/10.3390/electronics10101145.

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Perovskite solar cells (PSCs) with earth-abundant carbon as an effective replacer for unstable hole-transporting materials and expensive electrodes is a recently proposed structure promising better air and moisture stability. In this review paper, we report on the latest advances and state of the art of Pb-free and low-Pb-content perovskites, used as absorbers in carbon-based perovskite solar cells. The focus is on the implementation of these, environmentally friendly and non-toxic, structures in PSCs with a carbon electrode as a replacement of the noble metal electrode typically used (C-PSCs). The motivation for this study has been the great potential that C-PSCs have shown for the leap towards the commercialization of PSCs. Some of their outstanding properties include low cost, high-stability, ambient processability and compatibility with most up-scaling methods (e.g., printing). By surpassing the key obstacle of toxicity, caused by the Pb content of the highest-performing perovskites, and by combining the advantages of C-PSCs with the Pb-free perovskites low toxicity, this technology will move one step further; this review summarizes the most promising routes that have been reported so far towards that direction.
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Pantaler, Martina, Selina Olthof, Klaus Meerholz, and Doru C. Lupascu. "Bismuth-Antimony mixed double perovskites Cs2AgBi1-xSbxBr6 in solar cells." MRS Advances 4, no. 64 (2019): 3545–52. http://dx.doi.org/10.1557/adv.2019.404.

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AbstractReported conversion efficiencies of lead based perovskite solar cells keep increasing steadily. But next to the demand for high efficiency, the need for analogue non-toxic material systems remains. One promising lead free absorber material is the double perovskite Cs2AgBiBr6. Interest in this and other double perovskites has been increasing in the last three years and several solar cells using different device structures have been reported. However, the efficiency of these solar cells is merely in the range of 2%. To further improve solar cell performance we prepared mixed bismuth-antimony double perovskite Cs2AgBi1-xSbxBr6 where different fractions of antimony (x=0.125, 0.25, 0.375, 0.50) are used. This was motivated by reports of lower bandgap values in these mixed system. After the optimization of preparation of these thin films, we have carefully analysed the effects on the structure, composition, electronic structure, as well as optical properties. Finally, we have fabricated Bi-Sb mixed double perovskite solar cells in a mesoscopic device architecture.
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Rojas-Cervantes, María, and Eva Castillejos. "Perovskites as Catalysts in Advanced Oxidation Processes for Wastewater Treatment." Catalysts 9, no. 3 (March 2, 2019): 230. http://dx.doi.org/10.3390/catal9030230.

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Advanced oxidation processes (AOPs), based on the formation of highly reactive radicals are able to degrade many organic contaminants present in effluent water. In the heterogeneous AOPS the presence of a solid which acts as catalyst in combination with other systems (O3, H2O2, light) is required. Among the different materials that can catalyse these processes, perovskites are found to be very promising, because they are highly stable and exhibit a high mobility of network oxygen with the possibility of forming vacancies and to stabilize unusual oxidation states of metals. In this review, we show the fundaments of different kinds of AOPs and the application of perovskite type oxides in them, classified attending to the oxidant used, ozone, H2O2 or peroxymonosulfate, alone or in combination with other systems. The photocatalytic oxidation, consisting in the activation of the perovskite by irradiation with ultraviolet or visible light is also revised.
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Dissertations / Theses on the topic "Perovskite systems"

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Dixit, Manisha. "Structure-Property Correlations in Double Perovskite Systems." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366345489.

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Adams, Ruth. "Structure-composition-property relations in B-site deficient hexagonal perovskite systems." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9697/.

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This thesis describes the structural and preliminary electrical characterisation of various “shifted” hexagonal B-site deficient perovskites, of generic formula, A4B3O12. These ceramics are reported to possess promising microwave dielectric properties, which are a requirement for use in the ever evolving mobile telecommunications industry. The 12R crystal structures of the Ba3-xSrxLaNb3O12 series (x = 1 – 3) were refined at variable temperatures using NPD data in space group R-3 and some interesting behaviour was exhibited. All compositions were found to be antiphase tilted, the extent of which being dependent on the A-cation size. Upon heating, the tilt angle for all members of the series was found to decrease, although no tilt transitions from R-3 to R-3m were witnessed for all phases up to 900 °C, and a change in the magnitude of permittivity at 1 MHz was observed for all members except, BaSr2LaNb3O12. Additionally evidence from preliminary low temperature data suggest relaxor ferroelectric type behaviour. Ba2SrLaNb3O12 was found to possess the most promising dielectric properties although room exists for further improvement of the quality factor (Q value). To facilitate further tuning of the dielectric properties, specifically Q, the Ba3- xSrxLaNb3-yTayO12 series (x = 0 - 3, y = 1 - 2) was investigated, with the introduction of Ta5+ on the B-site. Some interesting ordering of A- and B-sites was found to occur, and furthermore, Nb5+ was found to display a preference to inhabit the distorted environment of B(1), adjacent to the “shifted” region, compared to the undistorted B(2) site, in the perovskite block. Unusual microwave dielectric properties were displayed with all compositions exhibiting small and positive temperature coefficient of resonant frequency (TCF) values and significantly small Q values, the reverse of what is expected, thus implying that the B-site has some influence on TCF values in this case. The interesting dielectric properties may be explained by several factors, including, the increased strength associated with the covalency of the Ta-O bond compared to that of Nb-O and the presence of some significant impurity phases, particularly in the intermediate compositions that are richer in Ta5+. The LCR data collected revealed similar results as found for the Ba3-xSrxLaNb3O12 series (x = 1 – 3), highlighting the limiting nature of the temperature range which did not, in fact reflect the true response of the compositions’ behaviour. All of the compositions are antiphase tilted at room temperature therefore the collection of variable temperature diffraction data is warranted. A range of novel Ta-based intergrowth compounds were synthesised and preliminarily characterised. No detailed structural or electrical data were collected for these compounds, however, the ability to form Ta-based intergrowths, in the first instance, has been established. It is postulated that by the formation of these intergrowth phases, the dielectric properties will be effectively tuned in comparison to those of the parent oxides that they are composed of, due to the regularisation of the octahedral layers that occurs upon the formation of such intergrowth structures. This often leads to improved TCF values, and by the introduction of Ta5+, can also give improved Q values. Ta5+ was substituted for Nb5+ in the untilted 5x6y (x = 1 – 3, y = 1) layered compounds, however, it was found that to facilitate this, the replacement of Ba2+ for Sr2+ was also required on the A-site. This double substitution was a requirement to obtain compositions closer to single phase Ta-rich phases compared to Nb-rich compositions.
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Pack, Maria Joyce. "Complex metal oxide materials : synthesis, structural characterisation and development of combined EXAFS and powder differaction analysis." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243098.

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Bing, Yonghong. "Synthesis, structure and properties of high piezo-and ferroelectric complex perovskite systems /." Burnaby B.C. : Simon Fraser University, 2005. http://ir.lib.sfu.ca/handle/1892/2032.

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Al-Hamadany, Raied Abass Saleh. "Quantum mechanical study of point and molecular defects in perovskite nano-systems." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2620.

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Strontium titanate is a perovskite dielectric material with a wide band-gap of 3.25 eV and a large relative dielectric permittivity of 300 at room temperature. The combi- nation of these properties makes SrTiO₃ a promising candidate for various industrial applications. However, there is growing evidence that oxygen vacancies have a sig- nificant impact upon its use, with the diffusion and deep donor level of the oxygen vacancy leading to electrical leakage. A qualitative understanding of the diffusion and electrical properties of oxygen vacancies can help to provide a clearer picture of many phenomena such as resistive switching and leakage current. Utilising SrTiO₃ thin films in various devices leads it to be in contact with other substances such as metal electrodes or other oxides. The lattice-mismatch between thin film SrTiO₃ and other material means that thin film SrTiO₃ is grown under bi-axial strain. The magnitude and the value of strain are driven by the lattice parameters of the material it is in contact with and the strain might be compressive or tensile. Here, the results of first principle density functional theory calculations performed using the AIMPRO code are presented. It is found that thin film SrTiO₃undergoes a transition from cubic to tetragonal structure with polarisation along the [001] and [110] directions under compressive and tensile (001) strain respectively. As a key parameter for tailoring the properties of SrTiO₃, the diffusivity of oxygen vacancies under bi-axial tensile or com- pressive strain has been investigated. The structural transition yields anisotropy in oxygen vacancy diffusion for diffusion within and between planes parallel to the plane of strain. Under (001) compressive strain it is found that, in the range of strains consistent with common substrate materials, diffusion energies in different directions are significantly affected, and for high values of strain may be altered by as much as a factor of two. The resulting diffusion anisotropy is expected to impact upon the rate at which oxygen vacancies are injected into the film under bias. By contrast, under (001) tensile strain, the diffusion of oxygen vacancies is predicted to increase in all directions (in-plane and inter-plane), albeit more so in the direction perpendicular to the plane of strain. Doping with a foreign element, namely a transition metal, is an alternative proce- dure for controlling the properties of SrTiO₃. The structural, thermodynamic, electri- cal and electronic properties of zinc-doped SrTiO₃ have been studied in the framework of density functional theory. The interaction of Zn with oxygen vacancies, which is a central theme in this thesis, has also been considered. In oxygen-lean conditions, however, the formation of oxygen vacancies is strongly favoured. It is found that VO may be bound to ZnTi with a binding energy of around 0.81±0.08 eV and no states in the gap. The role that ZnTi may have in the compensation for or capture of oxy- gen vacancy effects is discussed, along with the thermodynamics of Zn under various growth conditions.
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MATTIELLO, SARA. "VARIATIONS ON SELF-ASSEMBLY OF SURFACTANT-BASED CONFINED SYSTEMS." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2018. http://hdl.handle.net/10281/199111.

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Il filo conduttore del lavoro è il self-assembly di surfattanti per varie applicazioni nel campo delle nanotecnologie. I surfattanti sono molecole composte da una testa polare e una coda apolare che, in acqua, formano aggregati nanometrici detti micelle. L’interno di una micella è formato dalla porzione apolare dei surfattanti, che minimizza così la sua interazione con l'acqua, per cui non ha affinità. Dal momento che è composto da catene organiche, l'interno delle micelle forma un ambiente adatto alla solubilizzazione di altre specie organiche in base al principio "il simile scioglie il simile". Le micelle funzionano quindi come una “fase segregata” in cui è possibile far interagire tra loro specie poco solubili in acqua. Nei corso del primo progetto, abbiamo scoperto che un noto surfattante industriale, il Kolliphor® EL, forma micelle fortemente insensibili alla presenza di ossigeno. Questo ci ha permesso di utilizzarle come “scatole fotoniche” per il processo fotofisico di Triplet-Triplet Annihilation Up-Conversion, che sfrutta i livelli di tripletto di due specie organiche interagenti per convertire fotoni di bassa energia in fotoni di energia più elevata. Dal momento che l'ossigeno è un noto quencher di tripletti, è necessario un ambiente anossico. Abbiamo ottimizzato la resa quantica del processo in micella, e utilizzato con successo le micelle per imaging cellulare. Lo stesso surfattante è stato poi implementato per lo svolgimento di reazioni di sintesi organica di tipo Suzuki-Miyaura, anch’esse fortemente sensibili alla presenza di ossigeno, in condizioni di atmosfera non controllata. Abbiamo dimostrato che il Kolliphor può essere utilizzato con successo per la sintesi senza necessità di deossigenare l’ambiente di reazione, permettendo di ottenere rese di reazione comparabili a quelle di designer surfactants specifici per reazioni di coupling. Inoltre, abbiamo verificato che questo tensioattivo è utilizzabile come “nanoreattore” per la preparazione specificamente di semiconduttori organici. Le micelle sono oggetti dinamici, che continuamente si formano e digregano della fase acquosa. Nel corso del terzo progetto, abbiamo studiato la possibilità di stabilizzarle utilizzando un metodo originale, ispirato ai network polimerici interpenetrati. L’idea era di creare un sistema che, anche se formato da specie non legate chimicamente, fosse difficilmente separabile poiché formato da catene "aggrovigliate". All'atto pratico, abbiamo sintetizzato un co-surfattante polimerizzabile, e lo abbiamo disperso in una fase micellare formata da un surfattante ramificato: la polimerizzazione, avvenendo dopo la dispersione, avrebbe permesso di creare una catena polimerica interamente tra le maglie del tensioattivo. Dopo aver ottimizzato la polimerizzazione, abbiamo verificato non solo l’incrementata stabilità del sistema alla diluizione e alla temperatura, sintomatica della formazione di un sistema del tipo ricercato, ma anche che il nuovo materiale ha un’incrementata capacità di ritenzione del carico. Infine, surfattanti cationici (nello specifico, sali di ammonio) sono stati utilizzati per la sintesi di perovskiti colloidali attraverso un semplice processo di precipitazione da non-solvente. Nel caso di uso di sali di alchilammonio, le “piastrelle” ottenute mantengono le proprietà delle perovskiti cresciute come cristalli singoli, benché la sintesi sia sotto controllo cinetico anziché termodinamico. Inoltre, è possibile riconfigurarle in soluzione, variandone composizione e morfologia, tramite reazioni di scambio di alogeni in opportune condizioni. Quando il legante usato è invece il sale di ammonio di un poli(dimetilsilossano), la perovskite cresce in forma di singoli strati cristallini, sottilissimi e molto ampi. Le proprietà meccaniche di questo materiale rimangono molto simili a quelle del polimero di partenza, facendolo quindi assomigliare a un “semiconduttore liquido”.
Self-assembly of surfactant-based structures, and their application in the nanotechnology field, is the fil rouge connecting all the projects discussed. Surfactants are molecules formed by a polar head and an apolar tail covalently connected. In water, they form nanometric aggregates called micelles. The inner portion of a micelle is formed by the apolar blocks of the surfactants, which in this way minimize the interaction with the surrounding aqueous environment. As the inner core is formed by organic chains, it is apt to solubilize other organic species (on the basis of “like dissolves like” principle). Micelles therefore work as a segregated phase, which makes possible the interaction between poorly water-soluble species. During early stages of reaserch, we found that Kolliphor® EL, a widespread and cheap industrial surfactant, forms micelles strongly insensitive to oxygen. We therefore used them to carry out oxygen sensitive processes. A first project focused on their use as “photonic boxes” for Triple-Triplet Annihilation Up-Conversion (TTA-UC). Photophysics of this process is based on triplet levels of organic molecules, easily quenched by molecular oxygen. We developed an easy protocol to perform TTA-UC in air, optimized quantic yield of the process and proved that the obtained micellar dispersion is suitable for cellular imaging. We subsequently used Kolliphor micelles as “nanoreactors” to perform organic synthesis the like Suzuki-Miyaura coupling. This reaction makes use of oxygen sensitive palladium catalysts. We demonstrated that Kolliphor can be successfully used to perform this kind of reaction in standard oxygenated atmosphere, and the reaction yields are comparable to those obtained with surfactants specifically designed for coupling reactions. We also challenged Kolliphor in the synthesis of organic semiconductors with very good results, although the developed method needs some refinements. Micelles are dynamic objects, continuously forming and disrupting in the aqueous phase, a feature that might be discouraging for a series of applications. We developed an original method, inspired by interpenetrated polymer network properties, to stabilize micellar systems. The idea was to create a hardly disentanglable system as the result of mechanical hindrance instead of bond formation, which is the most used strategy. We therefore designed a polymerogenic co-surfactant to be dispersed within a micellar solution formed by a branched surfactant. We aimed at polymerizing the co-surfactant after dispersion in order to create a polymeric chain entangled within the branched surfactant polar heads. We optimized the polymerization reaction in order to obtain a full conversion of the monomers, and therefore we proved the system to be more stable to both dilution and temperature increasing. The newly obtained material, moreover, can be still loaded with organic species, and it shows an increased retention of loading upon solvent evaporation. Finally, we used two different families of cationic surfactant (specifically, ammonium salts) to synthesize colloidal hybrid perovskites through a simple non-solvent precipitation technique. The first family of surfactants is represented by classic alkylammonium halides: they allow to synthesize perovskite nanoplatelets which maintain the properties of the material prepared as single crystal. Moreover, they can be reconfigured in solution: halogen exchange reactions under tailored conditions, in fact, allow to modify both their composition and morphology. The second surfactant used is the ammonium salt of poly(dimethylsiloxane): use of this polymer allows to grow a naturally two-dimensional, unit-cell thick material. Mechanical properties of these perovskites resemble those of the starting polymer, meaning that these platelets might behave like something similar to a “liquid semiconductor”.
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Currie, David Blake. "A study of cation replacement in perovskite-related systems including high temperature superconductors." Thesis, University of the West of Scotland, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254391.

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Chu, Zili. "Neutron diffraction studies of disorder in R₂T₁₇ (R=Nd, Dy, Sm, Tb and T=Fe, Si, Al) and RFeO₃ perovskite systems /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3074388.

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Vernon, Marwyn. "Evaluating the economic viability of Perovskite – SHJ monolithically integrated photovoltaic modules." Thesis, Uppsala universitet, Fasta tillståndets elektronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-357948.

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In this study, the financial and economic viable of perovskite-SHJ tandem solar cells were determined using a detailed bottom-up cost model and energy-yield calculations. Attention to specific advancements in perovskite solar cell layer technology and large-scale deposition have been taken into account to create a realistic, viable commercial scale option for tandem production. A reference tandem technology is used to determine the overall manufacturing cost and minimum sustainable price. Models used show that the tandem technology has the potential to be cost competitive with existing silicon technology given the uncertainty and sensitivity of the values used in this study. It was examined further how non-STC energy yield and service life contributes to the overall economic viability of the tandem module within residential, commercial and utility scale of application. Given the reference tandem module, it is expected to be competitive at the residential level with existing silicon technology if perovskite layers' service life is greater than 20 years. In commercial and utility application, the tandem model is not economically viable due to the reductions seen in the area- and project-related installation costs for existing technology. This thesis concludes by presenting the current limitations in perovskite technology that would inhibit adaptation of this into commercial-scale production and presents alternative applications in which tandem modules would be more favourable.
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Nguyen, Lisa. "Investigation of Selected Molecular and Crystalline Systems using Ultrafast Time Resolved Infrared Spectroscopy." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574629448290612.

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Books on the topic "Perovskite systems"

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Nina, Orlovskaya, and Browning Nigel D, eds. Mixed ionic electronic conducting perovskites for advanced energy systems. Dordrecht: Kluwer Academic Publishers, 2004.

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Orlovskaya, Nina, and Nigel Browning, eds. Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2349-1.

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(Editor), Nina Orlovskaya, and Nigel Browning (Editor), eds. Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems: Proc. of the NATO ARW on Mixed Ionic Electronic Conducting (MIEC) Perovskites ... II: Mathematics, Physics and Chemistry). Springer, 2004.

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(Editor), Nina Orlovskaya, and Nigel Browning (Editor), eds. Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems: Proc. of the NATO ARW on Mixed Ionic Electronic Conducting (MIEC) Perovskites ... II: Mathematics, Physics and Chemistry). Springer, 2004.

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Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems. Springer, 2012.

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Browning, Nigel, and Nina Orlovskaya. Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems. Springer London, Limited, 2004.

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Book chapters on the topic "Perovskite systems"

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Wang, Z. L., and Z. C. Kang. "Perovskite and Related Structure Systems." In Functional and Smart Materials, 93–149. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5367-0_4.

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Vijila, C. V. Mary, Aldrin Antony, and M. K. Jayaraj. "Perovskite Solar Cells: Concepts and Prospects." In Energy Systems in Electrical Engineering, 97–133. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4526-7_3.

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Stoeffler, D. "Electronic Structure and Magnetism of Double Perovskite Systems." In Advances in the Atomic-Scale Modeling of Nanosystems and Nanostructured Materials, 197–226. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04650-6_7.

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Algueró, M., H. Amorin, T. Hungría, J. Ricote, R. Jiménez, A. Castro, P. Ramos, J. Galy, J. Holc, and M. Kosec. "Nanostructured Ceramics of Perovskite Morphotropic Phase Boundary Materials." In Advances in Multifunctional Materials and Systems, 1–18. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470909850.ch1.

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Devi, Chandni, and Rajesh Mehra. "Current Perspectives and Advancements of Perovskite Photovoltaic Cells." In Advances in Intelligent Systems and Computing, 83–92. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1483-8_8.

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Tao, S. W., and J. T. S. Irvine. "Optimisation of Perovskite Materials for Fuel Electrodes." In Mixed Ionic Electronic Conducting Perovskites for Advanced Energy Systems, 87–97. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2349-1_7.

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Bussmann-Holder, A. "Perovskite Oxides: A Rich and Fascinating Crystal Class Family." In Pair Correlations in Many-Fermion Systems, 63–73. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-1555-9_4.

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Alberta, Edward F., Ruyan Guo, and Amar S. Bhalla. "The Morphotropic Phase Boundary in Perovskite Ferroelectric Relaxor Systems." In Ceramic Transactions Series, 55–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118380802.ch4.

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Agrawal, Anupam, Shahbaz Ahmed Siddiqui, Amit Soni, and Ganesh D. Sharma. "Recent Development in Perovskite Solar Cell Based on Planar Structures." In Intelligent Computing Techniques for Smart Energy Systems, 1039–46. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0214-9_111.

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Hossain, Mohammad, Ounsi Daif, Nowshad Amin, Fahhad Alharbi, and Nouar Tabet. "Numerical Optimization of Lead Free Perovskite Solar Cell." In TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems (MEMA 2015), 335–38. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119090427.ch34.

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Conference papers on the topic "Perovskite systems"

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Hoang, Phuong, Valentino Libero Pio Guerra, Alexander Volochanskyi, Martin Mergl, Martin Kalbáč, and Petr Kovaříček. "Microscopic Phase Separation of Two-Components Perovskite Systems." In International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics. València: Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nipho.2022.020.

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Termine, Roberto, vincenzo Caligiuri, Svetalana Siprova, Aniket Patra, Giuseppe E. Lio, SImona Cilurzo, Attilio Golemme, and Antonio De Luca. "Coexisting and Competing Light-Matter Interaction Regimes in Meta-Voltaic Systems." In International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics. València: Fundació Scito, 2021. http://dx.doi.org/10.29363/nanoge.nipho.2022.022.

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Prasanna, J. Lakshmi, Ekta Goel, Amarjit Kumar, and Atul Kumar. "Computational Study of Perovskite/Perovskite Lead-free Tandem Solar Cell Devices." In 2022 IEEE International Symposium on Smart Electronic Systems (iSES). IEEE, 2022. http://dx.doi.org/10.1109/ises54909.2022.00059.

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Reid, Obadiah, Joshua Carr, Taylor Allen, and Garry Rumbles. "Distributed-range Marcus electron transfer in organic photovoltaic (OPV) systems." In Organic, Hybrid, and Perovskite Photovoltaics XXIII, edited by Gang Li, Thuc-Quyen Nguyen, Ana Flávia Nogueira, Barry P. Rand, Ellen Moons, and Natalie Stingelin. SPIE, 2022. http://dx.doi.org/10.1117/12.2637192.

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Jena, Hrudananda, and B. Rambabu. "Effect of Sonochemical, Regenerative Sol Gel and Microwave Assisted Synthesis Techniques on the Formation of Dense Electrolytes and Porus Electrodes for All Perovskite IT-SOFCs." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97262.

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Abstract:
The influence of preparation techniques on the microstructure, grain-size and consequently on the electrical transport properties of the ABO3 structured materials used as electrode and electrolytes in all perovskite IT-SOFC were investigated. Nano-crystalline powders of La1-xMxGa1-yNyO3±δ (M = Sr,; x = −0.10 to 0.15; N = Mg; y = −0.10 to 0.15) (LSGM) as electrolyte, porous La0.8Sr0.2Co0.8Fe0.2O3±δ (LSCF) or LaNi1-xFexO3±δ (x = 0–0.5) (LNF) as cathode, La0.8Sr0.2Cr0.7Mn0.3O3±δ (LSCM) as anode and LaCrO3 or substituted LaCrO 3 as interconnect were synthesized by various wet chemical methods. The wet chemical methods like metal-carboxylate gel decomposition, hydroxide co-precipitation, sonochemical and regenerative sol-gel process followed by microwave sintering of the powders have been used. Microwave sintering parameters were optimized by varying sintering time, and temperature to achieve higher density of LSGM pellets. The phase pure systems were obtained at sintering duration of 30 min at 1200 °C. The XRD, HR-TEM, and SEM measurements revealed the average grain size of these perovskites was ∼ 22 nm range. The electrical conductivities of the compositions were measured by ac (5Hz–13MHz) and dc techniques. The conductivity of the sintered pellets was found to be ∼0.01–0.21 S/cm at 550–1000°C range for electrolyte and 1.5–100 S/cm at 25–1000°C for electrodes respectively. The effect of sonochemical, and regenerative sol-gel methods in processing large quantities of nano-crystalline perovskites with multi-element substitutions at A- and B-sites to achieve physico-chemical compatibility for fabricating zero emission all perovskite IT-SOFCs are reported in this paper.
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Guerrero, Antonio. "Prospects of perovskite materials for neuromorphic computing." In Materials, devices and systems for neuromorphic computing 2022. València: Fundació Scito, 2022. http://dx.doi.org/10.29363/nanoge.matnec.2022.020.

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Vishwanath, Sujaya Kumar, Shubham Sahay, and Aditya Sadhanala. "Lead-free halide perovskite for flexible crossbar synapses." In Neuromorphic Materials, Devices, Circuits and Systems. València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2023. http://dx.doi.org/10.29363/nanoge.neumatdecas.2023.044.

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Nirmal, Amoolya, Darrell Jun Jie Tay, Natalia Yantara, Si En Ng, Divyam Sharma, and Nripan Mathews. "Halide perovskite thin film transistors for optical learning." In Neuromorphic Materials, Devices, Circuits and Systems. València: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO, 2023. http://dx.doi.org/10.29363/nanoge.neumatdecas.2023.030.

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Brunetti, Francesca. "Printable and flexible solar cells and energy storage systems: opportunities and challenges." In Online School on Hybrid, Organic and Perovskite Photovoltaics. València: Fundació Scito, 2020. http://dx.doi.org/10.29363/nanoge.hope-pv.2020.024.

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Kymakis, Emmanuel. "2D interfacial engineering for perovskite PVs: from small devices to solar systems." In Online School on Hybrid, Organic and Perovskite Photovoltaics. València: Fundació Scito, 2020. http://dx.doi.org/10.29363/nanoge.hope-pv.2020.009.

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Reports on the topic "Perovskite systems"

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Anderson, H. U., M. Nasrallah, D. M. Sparlin, and P. E. Parris. Defect characterization of electronic conducting pseudo-perovskite systems. Final report. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/10128800.

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Fthenakis, Vasilis. Comparative Life Cycle Analysis of Scalable Single-Junction and Tandem Perovskite Solar Cell (PSC) Systems. Office of Scientific and Technical Information (OSTI), October 2020. http://dx.doi.org/10.2172/1691513.

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