Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells
文献类型：期刊论文
| 作者 | Lin, Yuze1,2; Chen, Bo1,2; Zhao, Fuwen4; Zheng, Xiaopeng1,2; Deng, Yehao1,2; Shao, Yuchuan1,2; Fang, Yanjun1,2; Bai, Yang1,2; Wang, Chunru4; Huang, Jinsong1,2,3 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2017-07-12 |
| 卷号 | 29期号:26 |
| 关键词 | Fullerene Isomers Perovskites Solar Cells Wide Bandgap |
| 英文摘要 | Efficient wide-bandgap (WBG) perovskite solar cells are needed to boost the efficiency of silicon solar cells to beyond Schottky-Queisser limit, but they suffer from a larger open circuit voltage (VOC) deficit than narrower bandgap ones. Here, it is shown that one major limitation of VOC in WBG perovskite solar cells comes from the nonmatched energy levels of charge transport layers. Indene-C60 bisadduct (ICBA) with higher-lying lowest-unoccupied-molecular-orbital is needed for WBG perovskite solar cells, while its energy-disorder needs to be minimized before a larger VOC can be observed. A simple method is applied to reduce the energy disorder by isolating isomer ICBA-tran3 from the as-synthesized ICBA-mixture. WBG perovskite solar cells with ICBA-tran3 show enhanced V-OC by 60 mV, reduced V-OC deficit of 0.5 V, and then a record stabilized power conversion efficiency of 18.5%. This work points out the importance of matching the charge transport layers in perovskite solar cells when the perovskites have a different composition and energy levels. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38968]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA 2.Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA 3.Univ North Carolina Chapel Hill, Dept Appl Phys Sci, Chapel Hill, NC 27599 USA 4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Yuze,Chen, Bo,Zhao, Fuwen,et al. Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells[J]. ADVANCED MATERIALS,2017,29(26). |
| APA | Lin, Yuze.,Chen, Bo.,Zhao, Fuwen.,Zheng, Xiaopeng.,Deng, Yehao.,...&Huang, Jinsong.(2017).Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells.ADVANCED MATERIALS,29(26). |
| MLA | Lin, Yuze,et al."Matching Charge Extraction Contact for Wide-Bandgap Perovskite Solar Cells".ADVANCED MATERIALS 29.26(2017). |
入库方式： OAI收割
来源：化学研究所
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