Nanoscopic study of the compositions, structures, and electronic properties of grain boundaries in Cu(InGa)Se-2 photovoltaic thin films.
文献类型：期刊论文
| 作者 | Li, Wenjie; Ma, Yaping; Gong, Junbo; Zhang, Shengbai; Xiao, Xudong |
| 刊名 | NANO ENERGY
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Polycrystalline Cu(InGa)Se-2 (CIGS) thin film is a well-known light absorber material for photovoltaic solar cells. However, the mechanism of the benignity of its grain boundary (GB) remains in dispute. By using a combination of experimental techniques, we have systematically investigated the compositions, structures, and properties of the grain interior (GI) and GB of the polycrystalline CIGS films at nanometer scale. A definitive Cu deficient layer with thickness depending on the overall Cu content of the films was observed near the non Sigma 3 GBs with distinctly different characteristics from GIs. The band alignment between GB and GI was discovered to be of type II with downward offset for both conduction and valence bands at GB, well correlating to the local copper deficiency and structure. Our findings expressively support the type inversion and large hole barrier in this GB layer, and establish a comprehensive mechanism for the benignity of the CIGS grain boundaries towards carrier recombination. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/11604]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | NANO ENERGY |
| 推荐引用方式 GB/T 7714 | Li, Wenjie,Ma, Yaping,Gong, Junbo,et al. Nanoscopic study of the compositions, structures, and electronic properties of grain boundaries in Cu(InGa)Se-2 photovoltaic thin films.[J]. NANO ENERGY,2017. |
| APA | Li, Wenjie,Ma, Yaping,Gong, Junbo,Zhang, Shengbai,&Xiao, Xudong.(2017).Nanoscopic study of the compositions, structures, and electronic properties of grain boundaries in Cu(InGa)Se-2 photovoltaic thin films..NANO ENERGY. |
| MLA | Li, Wenjie,et al."Nanoscopic study of the compositions, structures, and electronic properties of grain boundaries in Cu(InGa)Se-2 photovoltaic thin films.".NANO ENERGY (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
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