Lead-free (CH3NH3)3Bi2I9 perovskite solar cells with fluorinated PDI films as organic electron transport layer

被引：36
作者：
Huang, Jiachi [1 ,2 ]
Gu, Zhuowei [1 ]
Zhang, Xinqian [1 ]
Wu, Gang [1 ]
Chen, Hongzheng [1 ]
机构：
[1] Zhejiang Univ, Dept Polymer Sci & Engn, State Key Lab Silicon Mat, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Hangzhou Normal Univ, Qianjiang Coll, Hangzhou 310016, Zhejiang, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 767卷
基金：
中国国家自然科学基金;
关键词：
Fluorinated perylene diimide; Organic electron transport material; Bismuth based perovskite; Morphology control; METHYLAMMONIUM BISMUTH IODIDE; ENHANCED PHOTOVOLTAIC PERFORMANCE; OPEN-CIRCUIT VOLTAGE; HALIDE PEROVSKITES; THIN-FILMS; TEMPERATURE; SEMICONDUCTORS; DEPOSITION; EFFICIENCY; ABSORBER;
D O I：
10.1016/j.jallcom.2018.07.185
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Fluorinated perylene diimide (FPDI) was used as organic electron transport material in lead-free bismuth based perovskite solar cells fabricated by sequential vacuum vapor deposition. The influences of convenient solvent treatments and substrate temperature on the morphology and structure of methylammonium bismuth (III) iodide (MA(3)Bi(2)I(9)) perovskite films were studied and the properties of the according solar cells were investigated. It was found that the power conversion efficiency of the device was 0.06% when the electron transport layer (ETL) of FPDI treated by solvent vapor annealing with chloroform and the substrate temperature at 75 degrees C. The device exhibits limited performance degradation after 17 days' storage in ambient atmosphere. The results provide the probability of utilizing FPDI as organic electron transport material in bismuth based perovskite solar cells with low toxicity and high stability. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：870 / 876
页数：7
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