Results 161 to 170 of about 1,644 (239)

A Facile Process for Partial Ag Substitution in Kesterite Cu2ZnSn(S,Se)4 Solar Cells Enabling a Device Efficiency of over 12.

ACS Applied Materials and Interfaces, 2021
A cation substitution in Cu2ZnSn(S,Se)4 (CZTSSe) offers a viable strategy to reduce the open-circuit voltage (Voc)-deficit by altering the characteristics of band-tail states, antisite defects, and related defect clusters.
M. Gang, V. Karade, M. Suryawanshi, Hyesun Yoo, Mingrui He, X. Hao, In-Jae Lee, Byeong Hoon Lee, S. Shin, J. H. Kim   +9 more
semanticscholar   +1 more source

Gradient Conduction Band Energy Engineering Driven High‐Efficiency Solution‐Processed Cu2ZnSn(S,Se)4/ZnxCd1–x S Solar Cells

Advanced Functional Materials, 2022
The photovoltaic performance of the environmentally friendly Cu2ZnSn(S,Se)4 (CZTSSe) solar cells is lower than its predecessor Cu(In,Ga)Se2 solar cells. Severe carrier recombination at the CZTSSe/CdS interface is one major reason that results in a large ...
Zhenye Xu, Qianqian Gao, Changcheng Cui, Shengjie Yuan, Dongxing Kou, Zhengji Zhou, Wenhui Zhou, Yuena Meng, Yafang Qi, M. Ishaq, Usman Ali Shah, Sixin Wu   +11 more
semanticscholar   +1 more source

Efficient and Composition‐Tolerant Kesterite Cu2ZnSn(S, Se)4 Solar Cells Derived From an In Situ Formed Multifunctional Carbon Framework

Advanced Energy Materials, 2021
Broadening the processing window is of high importance for developing efficient Cu2ZnSn(S,Se)4 (CZTSSe) solar cells. Herein, a high efficiency (active‐area: 13.5%) of CZTSSe solar cells achieved from thioglycolic acid (TGA)‐ammonia based water solution ...
Xiao Xu, Linbao Guo, Jiazheng Zhou, Bi-wen Duan, Dongmei Li, Jiangjian Shi, Huijue Wu, Yanhong Luo, Q. Meng   +8 more
semanticscholar   +1 more source

Behavior of indium alloying with Cu2ZnSn(S,Se)4 and its effect on performances of Cu2ZnSn(S,Se)4-based solar cell

Journal of Alloys and Compounds, 2018
Abstract P-type solid solutions of indium (In) in kesterite Cu2ZnSn(S,Se)4 films (CZTSSe(In)) with In contents of 0–19.34 at% were prepared by In alloying with the kesterite Cu2ZnSn(S,Se)4 (CZTSSe) through a solution approach. It is found that the In substitutes for Sn to form InSn acceptor defect in the CZTSSe(In) in the In content range of 0–1.15 ...
Zhenyu Xiao, Hongmei Luan, Ruijian Liu, Bin Yao, Yongfeng Li, Zhanhui Ding, Gang Yang, Rui Deng, Gang Wang, Zhenzhong Zhang, Ligong Zhang, Haifeng Zhao   +11 more
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Sodium Effects on the Diffusion, Phase, and Defect Characteristics of Kesterite Solar Cells and Flexible Cu2ZnSn(S,Se)4 with Greater than 11% Efficiency

Advanced Functional Materials, 2021
Improving the efficiency of kesterite (Cu2ZnSn(S,Se)4; CZTSSe) solar cells requires understanding the effects of Na doping. This paper investigates these effects by applying a NaF layer at various positions within precursors.
Kee‐Jeong Yang, Sammi Kim, Seyul Kim, Dae‐Ho Son, Jaebaek Lee, Young-ill Kim, S. Sung, Dae‐Hwan Kim, Temujin Enkhbat, JunHo Kim, Juran Kim, W. Jo, Jin‐Kyu Kang   +12 more
semanticscholar   +1 more source

Screening of alkali elements in Cu2ZnSn(S,Se)4

2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 2015
Group-I dopants are known to benefit Cu(In,Ga)Se2. Although the exact mechanism is still debated, Na has been shown to improve a variety of device parameters. Due to the similarities between chalcopyrites and kesterites, it is believed that group-I dopants may have a similar effect on kesterites.
Andrew Collord, Hugh W. Hillhouse
openaire   +1 more source

Optoeletronic investigation of Cu2ZnSn(S,Se)4 thin-films & Cu2ZnSn(S,Se)4/CdS interface with scanning probe microscopy

Science China Chemistry, 2015
The kesterite-structured semiconductor Cu2ZnSn(S,Se)4(CZTSSe) is prepared by spin coating a non-hydrazine precursor and annealing at Se atmosphere.Local electrical and optoelectronic properties of the CZTSSe thin-film are explored by Kelvin probe force microscopy and conductive atomic force microscopy.Before and after irradiation,no marked potential ...
Jiangjun Li, Yugang Zou, Ting Chen, Jinsong Hu, Dong Wang, Li-Jun Wan   +5 more
openaire   +1 more source

Na-doping-induced modification of the Cu2ZnSn(S,Se)4/CdS heterojunction towards efficient solar cells

, 2021
It is very important to understand why a small amount of alkali metal doping in Cu2ZnSn(S,Se)4 (CZTSSe) solar cells can improve the conversion efficiency.
Yali Sun, Honglin Guo, P. Qiu, Shengli Zhang, Siyu Wang, Li Wu, J. Ao, Yi Zhang   +7 more
semanticscholar   +1 more source

Ag, Ti Dual-Cation Substitution in Cu2ZnSn(S,Se)4 Induced Growth Promotion and Defects Suppression for High-Efficiency Solar Cells

Journal of Materials Chemistry A, 2022
The existence of various detrimental defects inside the absorber layer is a major obstacle limiting the performance of kesterite Cu2ZnSn(S,Se)4 (CZTSSe) thin-film solar cells.
Xing-Ye Chen, M. Ishaq, A. Nafees, Rong Tang, Zhuang‐hao Zheng, Ju-guang Hu, Zhenghua Su, P. Fan, G. Liang, Shuo Chen   +9 more
semanticscholar   +1 more source

Achieving high-efficiency Cu2ZnSn(S,Se)4 solar cells by Ag doping in Cu2ZnSn(S,Se)4 and substituting annealed In0.01Cd0.99S for CdS

Chemical Engineering Journal
Ding Ma, Mengge Li, Bin Yao, Yongfeng Li, Zhanhui Ding, Hongmei Luan, Chengjun Zhu, Jiayong Zhang, Chunkai Wang   +8 more
openaire   +2 more sources