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

被引：50

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：

新加坡国家研究基金会; 英国工程与自然科学研究理事会;

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

页码：324 / 332

页数：9