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Surface Passivation of All-Inorganic CsPbI2Br with a Fluorinated Organic Ammonium Salt for Perovskite Solar Cells with Efficiencies over 16% | |
2020-10 | |
发表期刊 | SOLAR RRL (IF:6.0[JCR-2023],6.4[5-Year]) |
ISSN | 2367-198X |
卷号 | 4期号:10 |
发表状态 | 已发表 |
DOI | 10.1002/solr.202000321 |
摘要 | Surface modification is demonstrated as an efficient strategy to enhance the efficiency and stability of perovskite solar cells (PVSCs). Fluorinated organic ammonium salts featuring a strong hydrophobic nature are seldom used as passivation agents for the surface modification of CsPbI2Br perovskites. Herein, a fluorinated organic ammonium halide salt, 4-trifluoromethyl phenethylammonium iodide (CFPEAI), is incorporated into the surface of CsPbI2Br perovskite for the first time. After the CFPEAI modification, the defects of CsPbI2Br perovskite are significantly passivated with reduced trap densities. The best-performance PVSC with CFPEAI modification shows an excellent power conversion efficiency (PCE) of 16.07% with a high fill factor (FF) of 84.65%, a short-circuit current density (J(SC)) of 15.45 mA cm(-2), and an open-circuit voltage (V-OC) of 1.23 V. In contrast, the control PVSCs without the surface modification exhibit a lower PCE of 14.50% with a FF of 80.56%, aJ(SC)of 15.05 mA cm(-2), and aV(OC)of 1.20 V. With CFPEAI passivation, the CsPbI2Br perovskite film exhibits enhanced hydrophobicity, thereby leading to improved stability for the corresponding PVSC in comparison with the control PVSC without any surface modification. |
关键词 | defect passivations energy-conversion fluorides perovskites surface modifications |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[U1605241] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH032] |
WOS研究方向 | Energy & Fuels ; Materials Science |
WOS类目 | Energy & Fuels ; Materials Science, Multidisciplinary |
WOS记录号 | WOS:000556247700001 |
出版者 | WILEY-V C H VERLAG GMBH |
EI主题词 | Perovskite solar cells |
WOS关键词 | ENHANCED PERFORMANCE ; DEFECT PASSIVATION ; HYBRID PEROVSKITES ; STABILITY ; CATION |
原始文献类型 | Article |
引用统计 | 正在获取...
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文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/122931 |
专题 | 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 |
通讯作者 | Zheng, Qingdong |
作者单位 | 1.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, 155 Yangqiao West Rd, Fuzhou 350002, Fujian, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, 100 Haike Rd, Shanghai 201210, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Shan-Ci,Wang, Di,Zheng, Qingdong. Surface Passivation of All-Inorganic CsPbI2Br with a Fluorinated Organic Ammonium Salt for Perovskite Solar Cells with Efficiencies over 16%[J]. SOLAR RRL,2020,4(10). |
APA | Chen, Shan-Ci,Wang, Di,&Zheng, Qingdong.(2020).Surface Passivation of All-Inorganic CsPbI2Br with a Fluorinated Organic Ammonium Salt for Perovskite Solar Cells with Efficiencies over 16%.SOLAR RRL,4(10). |
MLA | Chen, Shan-Ci,et al."Surface Passivation of All-Inorganic CsPbI2Br with a Fluorinated Organic Ammonium Salt for Perovskite Solar Cells with Efficiencies over 16%".SOLAR RRL 4.10(2020). |
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