Effects of selenization conditions on microstructure evolution in solution processed Cu2ZnSn(S,Se)4 solar cells | |
Department | 清洁能源化学与材料实验室 |
Zhao Y(赵雲)1,2; Han XX(韩修训)3; Chang L(常乐)1; Dong C(董琛)1,2; Li JS(栗军帅)4; Yan XB(阎兴斌)1,2 | |
The second department | 低维材料与化学储能组 |
2019-06 | |
Source Publication | Solar Energy Materials and Solar Cells |
Volume | 195Issue:12Pages:274-279 |
Abstract | Kesterite Cu2ZnSn(S,Se)4 (CZTSSe) shows great promise in thin filmphotovoltaic application due to its reasonable band gap, low cost and non-toxic earth-abundant composition. Post-selenization is the generally adopted approach to obtain CZTSSe film with large-grain size. Thoroughly understanding and well controlling the grain growth process during selenization is thus essential for achieving high-performance solar cell devices. Here we demonstrate that the absorber microstructure can be adjusted by altering selenization conditions, especially the heating rate and annealing time. It is found that heating rate determines formation manner of top CZTSSe layer, while annealing time affects both the crystallizationdegree of bottom CZTSSe layer and the selenization of Mo contact layer. Properly adjusting the annealing time at an optimized heating rate is proven to successfully eliminate the fine-grain layer and obtain high quality CZTSSe thin films with large-size grains. Based on the observations, growth mechanisms for the microstructure development during selenization of solution processed Cu2ZnSnS4 films are suggested. Finally, CZTSSe device efficiency of 9.24% is achieved at an optimal selenization condition. |
Indexed By | SCI |
If | 6.019 |
Language | 英语 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/25686 |
Collection | 清洁能源化学与材料实验室 |
Corresponding Author | Han XX(韩修训); Yan XB(阎兴斌) |
Affiliation | 1.Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 3.Institute of Semiconductor Materials, Jiangxi University of Science and Technology 4.School of Physical Science & Technology and Key Laboratory of Special Function Materials & Structure Design of the Ministry of Education, Lanzhou University |
Recommended Citation GB/T 7714 | Zhao Y,Han XX,Chang L,et al. Effects of selenization conditions on microstructure evolution in solution processed Cu2ZnSn(S,Se)4 solar cells[J]. Solar Energy Materials and Solar Cells,2019,195(12):274-279. |
APA | Zhao Y,Han XX,Chang L,Dong C,Li JS,&Yan XB.(2019).Effects of selenization conditions on microstructure evolution in solution processed Cu2ZnSn(S,Se)4 solar cells.Solar Energy Materials and Solar Cells,195(12),274-279. |
MLA | Zhao Y,et al."Effects of selenization conditions on microstructure evolution in solution processed Cu2ZnSn(S,Se)4 solar cells".Solar Energy Materials and Solar Cells 195.12(2019):274-279. |
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5-Effects of seleniz(3807KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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