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作者:

Ouedraogo, Nabonswende Aida Nadege (Ouedraogo, Nabonswende Aida Nadege.) | Yang, Min (Yang, Min.) | He, Chuan (He, Chuan.) | Chen, Yichuan (Chen, Yichuan.) | Zhang, Xiaobo (Zhang, Xiaobo.) | Yan, Hui (Yan, Hui.) | Han, Chang Bao (Han, Chang Bao.) | Zhang, Yongzhe (Zhang, Yongzhe.) (学者:张永哲)

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EI Scopus SCIE

摘要:

Hybrid organic-inorganic perovskites have attracted tremendous attention for solar cell application due to their outstanding properties. However, further studies are still needed to fully address the carrier recombination issue at grain boundaries which lowers the device performance, and its environmental stability issues. Fluoride additive engineering is found to be a good method to successfully passivate defects in perovskite films. Here, we developed a simple method to improve the device power conversion efficiency as well as its environmental stability, by introducing the polytetrafluoroethylene (PTFE) additive within the perovskite organic precursor in a two-step deposition method. The built-in electric field effect induced by PTFE induces the migration of photo-generated carriers, suppressing the electron-hole recombination, thus improving the short circuit current and then the photovoltaic performance. We obtained a maximum efficiency of 20.48% for PTFE 5%-based PSCs compared to the pristine one which was only 14.27%. Furthermore, it is also demonstrated that the PTFE-based PSC device exhibits strong environmental stability. The device presented only 5% PCE loss over 42 days of storage in an ambient environment.

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作者机构:

  • [ 1 ] [Ouedraogo, Nabonswende Aida Nadege]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Chen, Yichuan]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Xiaobo]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Yan, Hui]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Han, Chang Bao]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Yongzhe]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 7 ] [Ouedraogo, Nabonswende Aida Nadege]Beujing Univ Technol, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
  • [ 8 ] [Zhang, Xiaobo]Beujing Univ Technol, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
  • [ 9 ] [Zhang, Yongzhe]Beujing Univ Technol, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
  • [ 10 ] [Yang, Min]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
  • [ 11 ] [He, Chuan]Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
  • [ 12 ] [Chen, Yichuan]Jingdezhen Ceram Inst, Sch Mech & Elect Engn, Jingdezhen 333403, Jiangxi, Peoples R China

通讯作者信息:

  • 张永哲

    [Han, Chang Bao]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China;;[Zhang, Yongzhe]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China;;[Zhang, Yongzhe]Beujing Univ Technol, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China

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来源 :

SUSTAINABLE ENERGY & FUELS

ISSN: 2398-4902

年份: 2020

期: 8

卷: 4

页码: 4257-4263

5 . 6 0 0

JCR@2022

被引次数:

WoS核心集被引频次: 21

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

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