Results 191 to 200 of about 1,644 (239)

Modification of crystallization in Cu2ZnSn(S,Se)4 films using Al2O3 capping layers

Solar Energy Materials and Solar Cells, 2021
Abstract In this paper, we reported a modified preparation process for Cu2ZnSn(S,Se)4 (CZTSSe) films. For this process, Al2O3 capping layers were deposited on precursor films before selenization. It was found the capping layer can prevent the formation of separate CuxSe phase on top of the film and facilitate a homogeneous growth of the crystalline ...
Xiaowei Zhou, Chao Gao, Hao Luo, Zhiwei Liu, Haixu Liu, Haifeng Gao, Qing Zhou, Wenbo Li, Xiaoyun Teng, Wei Yu   +9 more
openaire   +1 more source

Constructing A Carrier Collection Framework at The Rear Interface in Cu2ZnSn(S, Se)4 Solar Cells by Selenizing an Inserted CuBi2O4 Nanolayer.

ACS Applied Materials and Interfaces
This work introduces the application of an ultrathin CuBi2O4 (CBO) nanolayer to improve the performance of Cu2ZnSn(S, Se)4 (CZTSSe) photovoltaic cells.
Xueyun Zhang, Yixiong Ji, Jialiang Huang, E. Akinoglu, Fangyang Liu, Paul Mulvaney, Xiaojing Hao   +6 more
semanticscholar   +1 more source

High Efficiency Cu2ZnSn(S,Se)4 Solar Cells by Applying a Double In2S3/CdS Emitter

Advanced Materials, 2014
Jeehwan Kim, Oki Gunawan, Tayfun Gökmen   +2 more
exaly   +2 more sources

Electronic and elemental properties of the Cu2ZnSn(S,Se)4 surface and grain boundaries

Applied Physics Letters, 2014
X-ray and femtosecond UV photoelectron spectroscopy, secondary ion mass spectrometry and photoluminescence imaging were used to investigate the electronic and elemental properties of the CZTS,Se surface and its oxides. Oxide removal reveals a very Cu poor and Zn rich surface relative to bulk composition.
Richard Haight, Xiaoyan Shao, Wei Wang, David B. Mitzi   +3 more
openaire   +1 more source

Effect of germanium incorporation on the properties of kesterite Cu2ZnSn(S,Se)4 monograins

Thin Solid Films, 2019
Abstract In this work, the influence of partial substitution (up to 10%) of tin (Sn) by germanium (Ge) in Cu2ZnSn(S,Se)4 (CZTSSe) solid solution monograins was studied. The external quantum efficiency measurements of the CZTGSSe monograin layer solar cells showed an increase in the band gap energy of the Ge-substituted CZTGSSe.
Souhaib Oueslati, Maarja Grossberg, Marit Kauk-Kuusik, Valdek Mikli, Kaia Ernits, Dieter Meissner, Jüri Krustok   +6 more
openaire   +1 more source

Precursor designs for Cu2ZnSn(S,Se)4 thin-film solar cells

Nano Energy, 2017
Abstract To commercialize Cu2ZnSn(S,Se)4 (CZTSSe) thin-film solar cells, it is necessary to improve their efficiency and to develop the technological ability to produce large-area modules. Defect formation due to the secondary phase is considered to be one of the main reasons for decreased CZTSSe thin-film solar-cell efficiency.
Yang, Kee-Jeong, Sim, Jun-Hyoung, Son, Dae-Ho, Kim, Young-Ill, Kim, Dae-Hwan, Nam, Dahyun, Cheong, Hyeonsik, Kim, SeongYeon, Kim, JunHo, Kang, Jin-Kyu   +9 more
openaire   +2 more sources

Solvent Engineering-Enabled Surface Defect Passivation in Cu2ZnSn(S,Se)4 Solar Cells with Low Open-Circuit Voltage Losses and Improved Carrier Lifetime.

ChemSusChem
The efficiency of earth-abundant kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cells has been lagging behind the Shockley-Queisser limit primarily due to the presence of deep-level defects.
Umar Farooq, Boyang Han, Usman Ali Shah, Fa Yang, Sheng Li, Yanping Song, Ali Hassan, Zhengquan Li, Jin Wang   +8 more
semanticscholar   +1 more source

Semi-empirical device model for Cu2ZnSn(S,Se)4 solar cells

Applied Physics Letters, 2014
We present a device model for the hydrazine processed kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cell with a world record efficiency of ∼12.6%. Detailed comparison of the simulation results, performed using wxAMPS software, to the measured device parameters shows that our model captures the vast majority of experimental observations, including VOC, JSC ...
Tayfun Gokmen, Oki Gunawan, David B. Mitzi   +2 more
openaire   +1 more source

Experimental and theoretical advances in Cu2ZnSn(S,Se)4 solar cells

Journal of Physics D: Applied Physics
Cu2ZnSn(SSe)4 (CZTSSe) semiconductor is quite promising to solar cell applications, recently achieving a new record efficiency of 14.9%. Despite theoretical works have shown that efficiencies higher than 20% are possible in this technology, there are ...
K. G. Rodriguez-Osorio, Jacob Antonio Andrade Arvizu, Isaac Montoya De Los Santos, J. P. Morán Lázaro, M. Ojeda M, F. J. Sánchez Rodríguez, Lenin Axel Axel Sanchez Hernandez, Laura M. Pérez, D. Laroze, P. Chandrasekar, S. Routray, M. Courel Piedrahita   +11 more
semanticscholar   +1 more source

Over 11 % efficient eco-friendly kesterite solar cell: Effects of S-enriched surface of Cu2ZnSn(S,Se)4 absorber and band gap controlled (Zn,Sn)O buffer

, 2020
For high efficiency kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cell, CdS thin film was usually used as a buffer layer. However, due to the toxicity of Cd and pollution problems involved from the solution-based chemical bath deposition, eco-friendly high ...
Jiwon Lee, Temujin Enkhbat, Gyuho Han, Md Hamim Sharif, Enkhjargal Enkhbayar, Hyesun Yoo, Jin Hyeok Kim, Seongyeon Kim, JunHo Kim   +8 more
semanticscholar   +1 more source