Extra long electron-hole diffusion lengths in CH3NH3PbI3-xClx perovskite single crystals
文献类型：期刊论文
| 作者 | Zhang, Fengying1,2; He, Rongxing2; Deng, Weiqiao1,3; Li, Yajuan1,3; Yang, Bin1,3 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2017-09-07 |
| 卷号 | 5期号:33页码:8431-8435 |
| 英文摘要 | Long electron-hole diffusion lengths in organolead trihalide compounds play a key role in achieving the remarkable performance of perovskite photovoltaics. Diffusion lengths in solution-grown CH3NH3PbI3 single crystals have been found to be greater than 175 micrometer (mm). Herein, we report the diffusion lengths in CH3NH3PbI3-xClx single crystals exceeding 380 mm under 1 Sun illumination, which is twice that in CH3NH3PbI3 single crystals. Incorporation of chlorine is found to increase the density of trap-states and reduce the valence band level; these two factors, which dominate the carrier recombination and the charge transfer, respectively, are in a competing relation. As a result, the electron-hole diffusion lengths in a CH3NH3PbI3-xClx single crystal with an optimum Cl proportion (x = 0.005) reach the maximum values. This study provides a strategy for the design of perovskite optoelectronics. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Materials Science ; Physics |
| 关键词[WOS] | INVERSE TEMPERATURE CRYSTALLIZATION ; TOTAL-ENERGY CALCULATIONS ; LEAD IODIDE PEROVSKITES ; WAVE BASIS-SET ; HALIDE PEROVSKITES ; SOLAR-CELLS ; SOLUTION GROWTH ; EFFICIENCY ; TRANSPORT ; CHLORIDE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000408413600013 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/149975]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Southwest Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Luminescence & Real Time Analyt Chem, Chongqing 400715, Peoples R China 3.Univ Chinese Acad Sci, Beijing 10049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Fengying,He, Rongxing,Deng, Weiqiao,et al. Extra long electron-hole diffusion lengths in CH3NH3PbI3-xClx perovskite single crystals[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(33):8431-8435. |
| APA | Zhang, Fengying,He, Rongxing,Deng, Weiqiao,Li, Yajuan,&Yang, Bin.(2017).Extra long electron-hole diffusion lengths in CH3NH3PbI3-xClx perovskite single crystals.JOURNAL OF MATERIALS CHEMISTRY C,5(33),8431-8435. |
| MLA | Zhang, Fengying,et al."Extra long electron-hole diffusion lengths in CH3NH3PbI3-xClx perovskite single crystals".JOURNAL OF MATERIALS CHEMISTRY C 5.33(2017):8431-8435. |
入库方式： OAI收割
来源：大连化学物理研究所
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