Results 41 to 50 of about 1,907 (191)

Vibrational properties of sulfoselenide solid solutions [PDF]

, 2014
In this work, Raman spectroscopy and X-ray diffraction were applied together to evaluate the crystal structure and the phonon modes of photovoltaic grade Cu 2ZnSn(SxSe1−x)4 thin films, leading to a complete characterization of their structural and ...
Dimitrievska, Mirjana, Fairbrother, Andrew, Fontané, Xavier, Gurieva, Galina, Izquierdo-Roca, Victor, Pérez-Rodríguez, Alejandro, Saucedo, Edgardo, Schorr, Susan, Xie, Haibing   +8 more
core   +1 more source

Influence of reaction conditions on the properties of solution-processed Cu2ZnSnS4 nanocrystals [PDF]

, 2014
Cu2ZnSnS4 nanocrystals were fabricated by hot injection of sulphur into a solution of metallic precursors. By careful control of the reaction conditions it was possible to control the elemental composition of the nanocrystals such that they are suitable ...
Beattie, Neil, Miles, Robert, Qu, Yongtao, Zoppi, Guillaume   +3 more
core   +1 more source

Enhanced external quantum efficiency from Cu2ZnSn(S,Se)4 solar cells prepared from nanoparticle inks [PDF]

, 2018
Cu2ZnSn(S,Se)4 (CZTSSe) thin film photovoltaic absorber layers are fabricated by selenizing Cu2ZnSnS4 (CZTS) nanoparticle thin films in a selenium rich atmosphere.
Beattie, Neil, Jourdain, Sophie, Peter, Laurence, Qu, Yongtao, Zoppi, Guillaume   +4 more
core   +1 more source

Optoelectronically optimized colored thin-film CZTSSe solar cells [PDF]

International Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019, 2019
Rooftop solar cells may become more acceptable if they are colored, e.g., red or bluish green, which requires that a certain part of the incoming solar spectrum be reflected. We implemented and optimized an optoelectronic model for Cu2ZnSn(SξSe1-ξ)4 (CZTSSe) solar cells containing (i) a conventional 2200-nm-thick CZTSSe layer with homogeneous bandgap ...
Faiz Ahmad, Tom H. Anderson, Torben A. Lenau, Akhlesh Lakhtakia   +3 more
openaire   +1 more source

Cu2ZnSnS4 thin film solar cells grown by fast thermal evaporation and thermal treatment [PDF]

, 2018
Cu2ZnSnS4 thin films have been produced via rapid thermal evaporation of off-stoichiometric kesterite powder followed by annealing in an Ar atmosphere. Different heating rates were applied during the thermal treatments.
Caballero, Raquel, García-Llamas, E., Giraldo, S., Greiner, D., Gunder, R., Izquierdo-Roca, V., León, M., Merino, J. M., Neldner, K., Saucedo, E., Schorr, S., Steigert, A.   +11 more
core   +1 more source

Self-Alignment of Bottom CZTSSe by Patterning of an Al₂O₃ Intermediate Layer

Nanomaterials, 2019
When CZTSSe is synthesized using a metal precursor, large voids of nonuniform size form at Mo back contact side. Herein, we demonstrate that the voids and CZTSSe in the lower part of the CZTSSe double layer can be controlled by using an Al2O3-patterned ...
Sanghun Hong, Se-Yun Kim, Dae-Ho Son, Seung-Hyun Kim, Young-Ill Kim, Kee-Jeong Yang, Young-Woo Heo, Jin-Kyu Kang, Dae-Hwan Kim   +8 more
doaj   +1 more source

Reducing series resistance in Cu2ZnSn(S,Se)4 nanoparticle ink solar cells on flexible molybdenum foil substrates [PDF]

, 2018
Earth abundant Cu2ZnSnS4 nanoparticle inks were depostied on molybdenum foil substrates and subsequently converted to high quality thin film Cu2ZnSn(S,Se)4 photovoltaic absorbers.
Barrioz, Vincent, Beattie, Neil, Qu, Yongtao, Xu, Xinya, Zoppi, Guillaume   +4 more
core   +2 more sources

Controlling the S/(S + Se) ratio in Co-doped CZTSSe films via optimizing the annealing condition for highly efficient solar cells

Results in Physics
Selenium-rich Cu2ZnSn(S,Se)4 (CZTSSe) absorber with large-grained structure is a significant contribution to the preparation of efficient CZTSSe solar cells. Therefore, it is important to find an applicable method to adjust the S/(S + Se) ratio in CZTSSe
Zhanwu Wang, Meiling Ma, Hongduo Wu, Yingrui Sui   +3 more
doaj   +1 more source

Substitution of Ag for Cu in Cu₂ZnSn(S,Se)₄: Toward Wide Band Gap Absorbers with Low Antisite Defects for Thin Film Solar Cells

Nanomaterials, 2020
Cation substitution is a promising approach to reduce the antisite defects and further improve the efficiency of Cu2ZnSn(S,Se)4 (CZTSSe) cells. In this paper, silver (Ag) has been introduced into Cu2ZnSn(S,Se)4 (CZTSSe) thin film to replace Cu partially ...
Yanjie Wu, Yingrui Sui, Wenjie He, Fancong Zeng, Zhanwu Wang, Fengyou Wang, Bin Yao, Lili Yang   +7 more
doaj   +1 more source

Suns-V$_\textrm{OC}$ characteristics of high performance kesterite solar cells

, 2014
Low open circuit voltage ($V_{OC}$) has been recognized as the number one problem in the current generation of Cu$_{2}$ZnSn(Se,S)$_{4}$ (CZTSSe) solar cells. We report high light intensity and low temperature Suns-$V_{OC}$ measurement in high performance
Gokmen, Tayfun, Gunawan, Oki, Mitzi, David B.   +2 more
core   +1 more source