Surface modified fullerene electron transport layers for stable and reproducible flexible perovskite solar cells

被引：55
作者：
Song, Seulki [1 ]
Hill, Rebecca [2 ,3 ]
Choi, Kyoungwon [1 ]
Wojciechowski, Konrad [4 ]
Barlow, Stephen [2 ,3 ]
Leisen, Johannes [2 ,3 ]
Snaith, Henry J. [4 ]
Marder, Seth R. [2 ,3 ]
Park, Taiho [1 ]
机构：
[1] Pohang Univ Sci & Technol POSTECH, Chem Engn, 77 Cheongam Ro, Pohang, Kyoungbuk, South Korea
[2] Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA
[3] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
[4] Clarendon Lab, Dept Phys, Parks Rd, Oxford OX1 3PU, England
来源：
NANO ENERGY | 2018年 / 49卷
基金：
英国工程与自然科学研究理事会; 新加坡国家研究基金会;
关键词：
Low temperature; Planar device; Organic ETL; Flexible device; ORGANOMETAL HALIDE PEROVSKITES; CROSS-LINKABLE FULLERENE; HIGHLY EFFICIENT PLANAR; EXCITON BINDING-ENERGY; THIN-FILM; ENHANCED CRYSTALLIZATION; EFFECTIVE MASSES; PERFORMANCE; HYSTERESIS; C-60;
D O I：
10.1016/j.nanoen.2018.04.068
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：
We report flexible planar perovskite solar cells with robust electron-transport layers (ETLs) processed at low temperature. A poly(allylamine) (PAA; 0.08 wt%) solution was deposited on a C-60 layer and heated at 150 degrees C for 60 s, resulting in the formation of an insoluble robust C-60-PAA electron-transport layer (ETL) on the flexible substrate. The flexible planar perovskite solar cell with the C-60-PAA ETL exhibited excellent properties with 83% efficiency retention (eta= 15.2% without hysteresis) after 600 cycles of bending. This performance is superior to that of the flexible device with a C-60 ETL fabricated without the use of PAA (65% efficiency retention; eta = 9.8% with some hysteresis).
引用
收藏
页码：324 / 332
页数：9
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