Crystallization and defects regulation of efficient perovskite solar cells via surface induced secondary grain growth with formamidine iodine treatment

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成果类型：

期刊论文

作者：

Ming, Yue;Cheng, Yue;Shen, Wenjian;Ran, Hongbing;Jiang, Jinghua;...

通讯作者：

Wang, SY;Tang, YW

作者机构：

[Wang, SY; Wang, Shiyu; Qv, Haizhou; Jiang, Jinghua; Wang, Jintao; Cheng, Yue; Ming, Yue; Xue, Yan] Shenzhen Polytech Univ, Coll Elect & Commun Engn, Shenzhen 518055, Peoples R China.

[Ran, Hongbing; Zhao, Yue; Tang, Yiwen; Shen, Wenjian] Cent China Normal Univ, Coll Phys & Technol, Dept Nanosci & Technol, Wuhan 430079, Peoples R China.

[Liu, Jiale] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China.

通讯机构：

[Wang, SY ] S

[Tang, YW ] C

Shenzhen Polytech Univ, Coll Elect & Commun Engn, Shenzhen 518055, Peoples R China.

Cent China Normal Univ, Coll Phys & Technol, Dept Nanosci & Technol, Wuhan 430079, Peoples R China.

语种：

英文

关键词：

Perovskite solar cells;Defect passivation;Surface induced secondary grain growth;Graded passivation

期刊：

Journal of Alloys and Compounds

ISSN：

0925-8388

年：

2024

卷：

984

页码：

173913

DOI：

10.1016/j.jallcom.2024.173913

基金类别：

This work was supported by the Shenzhen Science and technology Research and Development Fund [grant numbers RCBS20221008093253094 ], National Natural Science Foundation of China [grant numbers 52202270 ], Shiyu Wang Lihu Elite Talent Project [grant numbers LHRC20230401–2023 ], Youth Funding of Shenzhen Polytechnic [grant numbers 6022310023K0 , 6022312055K0 , 6022312058K0 ], Shenzhen Polytechnic University Research Fund [grant numbers ZX2023002901 ]. Yue Ming and Yue Cheng contributed equally to this work.

机构署名：

本校为通讯机构

院系归属：

物理科学与技术学院

摘要：

Trap–mediated non–radiative loss is a major efficiency and stability obstale for solution–processed perovskite solar cells (PSCs). To address this issue, defect passivation using organic molecules has been identified as an effective strategy due to the ionic nature of the perovskite lattice. Herein, Ostwald ripening by using formamidine iodine (FAI) is reported to inhibit the carrier trap induced recombination via promoting secondary grain growth at perovskite surface. Based on secondary grain growth with FAI treatment, the graded passivatio...

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Crystallization and defects regulation of efficient perovskite solar cells via surface induced secondary grain growth with formamidine iodine treatment

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