Boosting Photovoltaic Performance and Stability of Super-Halogen-Substituted Perovskite Solar Cells by Simultaneous Methylammonium Immobilization and Vacancy Compensation
文献类型：期刊论文
| 作者 | Xu, Shendong3; Liu, Guozhen1,3; Zheng, Haiying4,5; Xu, Xiaoxiao1,3; Zhang, Liying1,3; Xu, Huifen3,4,5; Zhu, Liangzheng6; Kong, Fantai3 ; Li, Yongtao2; Pan, Xu3
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| 刊名 | ACS APPLIED MATERIALS & INTERFACES
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| 出版日期 | 2020-02-19 |
| 卷号 | 12 |
| 关键词 | perovskite solar cells super-halogen BH4- vacancy substitution methylammonium immobilization stability |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.9b21074 |
| 通讯作者 | Li, Yongtao(toni-li@163.com) ; Pan, Xu(xpan@rntek.cas.cn) |
| 英文摘要 | Perovskite solar cells (PSCs) are susceptible to intrinsic structural instability associated with the presence of inorganic halide anions and organic cation vacancies, thus leading to the deterioration or even premature failure of devices. Herein, we develop an efficient strategy using super-halogen BH4- substitution to simultaneously immobilize methylammonium and substitute iodide vacancy for high-performance PSCs based on the dihydrogen bonding interactions. The introduced super-halogen BH4- groups not only significantly reduce the vacancy density but also effectively inhibit the decomposition of the CH3NH3+ group by forming perovskite CH3NH3PbI3-x(BH4-)(x). The power conversion efficiency (PCE) of the assembled mesoporous devices is remarkably promoted from 18.43 to 21.10%, accompanied by significant increase of both J(sc) and V-oc without obvious hysteresis. The superior PSCs can retain 90 and 80% of their initial PCE even after being stored for 1200 h under environmental conditions (50 +/- 10% RH) and 240 h at 85 degrees C in the dark, respectively. Moreover, it delivers excellent optical stability under ultraviolet illumination. This work provides an avenue to improve both the long-term stability and photovoltaic performance of PSCs. |
| WOS关键词 | HALIDE PEROVSKITES ; HIGHLY EFFICIENT ; DEGRADATION ; PASSIVATION ; TOLERANCE ; CHEMISTRY ; BEHAVIOR ; IMPACT ; LAYER |
| 资助项目 | National Key Research and Development Program of China[2017YFE0133800] ; National Natural Science Foundation of China[51971002] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000515214300042 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103955]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Yongtao; Pan, Xu |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China 3.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 4.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 5.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 6.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Shendong,Liu, Guozhen,Zheng, Haiying,et al. Boosting Photovoltaic Performance and Stability of Super-Halogen-Substituted Perovskite Solar Cells by Simultaneous Methylammonium Immobilization and Vacancy Compensation[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12. |
| APA | Xu, Shendong.,Liu, Guozhen.,Zheng, Haiying.,Xu, Xiaoxiao.,Zhang, Liying.,...&Pan, Xu.(2020).Boosting Photovoltaic Performance and Stability of Super-Halogen-Substituted Perovskite Solar Cells by Simultaneous Methylammonium Immobilization and Vacancy Compensation.ACS APPLIED MATERIALS & INTERFACES,12. |
| MLA | Xu, Shendong,et al."Boosting Photovoltaic Performance and Stability of Super-Halogen-Substituted Perovskite Solar Cells by Simultaneous Methylammonium Immobilization and Vacancy Compensation".ACS APPLIED MATERIALS & INTERFACES 12(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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