Results 151 to 160 of about 1,060 (196)

Experimental, theoretical and numerical simulation-based investigations on the fabricated Cu₂ZnSn thin-film-based Schottky diodes with enhanced electron transport for solar cell. [PDF]

Sci Rep
Mukhamale SV, Kartha MJ, Khirade PP.
europepmc   +1 more source

Improved CZTSe solar cell efficiency via silver and germanium alloying [PDF]

Solar Energy
In this study, we report systematic investigation of the effects of Ag and Ge alloying on properties of CZTSe layers, as well as, on the performance of solar cells fabricated using these films.
Recep Zan, Emin Bacaksiz, Mehmet Ali Olgar   +2 more
exaly   +2 more sources

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Effects of elemental ratios in CZTSe film on CZTSe/CdS band alignment and inhomogeneity in absorber thermal conductivity

2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2016
CZTSe solar cells with different elemental ratios are compared for their photo-response with low and high illumination densities. Elemental ratios are found not only affecting the defect density, but also Mo/CZTSe/CdS band alignment. Higher Sn/Cu and lower Zn ratio was found more immune to EQE droop at high power illumination, although it yields lower ...
Qiong Chen, Yong Zhang
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Impact of germanium nano layer on the CZTSe absorber layer properties

Materials Science in Semiconductor Processing, 2022
Abstract In the present work, in order to study the effect of Germanium (Ge) thin layer incorporation on the CZTSe films, the Ge thin layer was deposited on the backside of the CZTSe as well as in between the CZTSe. The films were prepared with the help of thermal evaporation technique in stack format using all the constituents.
Nandu B Chaure, Nandu B Chaure, Udai P Singh   +2 more
exaly   +2 more sources

Fabrication and Electronic Properties of CZTSe Single Crystals

IEEE Journal of Photovoltaics, 2015
CZTSe single crystals of different compositions were fabricated by solid-state reaction of elements in a sealed ampoule below the melt temperature. About 2-5-mm crystals were achieved without a flux agent, which, when present, can potentially affect defect properties in the material.
Douglas M. Bishop, Brian E. McCandless, Richard Haight, David B. Mitzi, Robert W. Birkmire   +4 more
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Effect of temperature profile on the formation of CZTSe absorber layer

2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020
Cu 2 ZnSnSe 4 thin films were deposited on glass substrates in a sequence like; Cu/Zn/Sn/Se/Cu using thermal evaporation method. To prevent the loss of materials from the surface, capping was done by depositing Cu at the top. Post deposition annealing has been carried out at 400°C with four different ramp time of 2 minutes, 4 minutes, 6 minutes and ...
Vishvas Kumar, Udai P. Singh
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CZTSe devices fabricated from CZTSSe nanoparticles

2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 2013
To understand and control the growth paths of kesterite based CZTSe films as prepared from kesterite nanoparticles we investigate films prepared from different chalcogenide ratios in the initial nanoparticles. To do so we introduce a new method for producing kesterite nanocrystals with controlled ratios of sulfur and selenium.
Bryce C. Walker, Bethlehem G. Negash, Stephen M. Szczepaniak, Kevin W. Brew, Rakesh Agrawal   +4 more
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Surface preparation for 10% efficient CZTSe solar cells

Progress in Photovoltaics: Research and Applications, 2020
AbstractKesterite‐based solar cells suffer from a large open‐circuit voltage deficit, which largely arises from carrier recombination at the buffer interface. In this study, we compare two strategies to passivate the absorber surface in order to fabricate devices with power conversion efficiency higher than 10% and an open‐circuit voltage deficit as ...
Grenet, Louis, Emieux, Fabrice, Choubrac, Léo, Márquez, José, de Vito, Eric, Roux, Frédéric, Unold, Thomas   +6 more
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Optimization of selenization parameters for fabrication of CZTSe thin film

Superlattices and Microstructures, 2020
Abstract For the formation of CZTSe films, selenization time and temperature play a crucial role in a material synthesis which in turn highly affects the properties of the films. In this work, Cu, Zn, Sn and Se were thermally-deposited sequentially on Mo coated soda-lime glass (SLG) substrates.
Vishvas Kumar, Alapan Dutta, Udai P. Singh   +2 more
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Effect of selenization temperature on the formation of CZTSe absorber layer

Applied Physics A, 2019
Cu2ZnSnSe4 (CZTSe) thin-films were deposited on soda-lime glass (SLG) and Mo/SLG substrate by the thermal evaporation method. The deposition was followed by two-step annealing in Se atmosphere. It was found that the selenization temperature significantly affects the phase, surface morphology, optical properties and electrical properties of the films ...
Vishvas Kumar, Udai P. Singh
openaire   +1 more source