Cesium-doped methylammonium lead iodide perovskite light absorber for hybrid solar cells

被引：467

作者：

Choi, Hyosung ^{[1
]}

Jeong, Jaeki ^{[1
]}

Kim, Hak-Beom ^{[1
]}

Kim, Seongbeom ^{[1
]}

Walker, Bright ^{[1
]}

Kim, Gi-Hwan ^{[1
]}

Kim, Jin Young ^{[1
]}

机构：

[1] UNIST, Sch Energy & Chem Engn, Ulsan 689798, South Korea

来源：

NANO ENERGY | 2014年 / 7卷

基金：

新加坡国家研究基金会;

关键词：

Methylammonium lead iodide perovskite; Cesium doping; Planar heterojunction; Hybrid solar cells; OPEN-CIRCUIT VOLTAGE; EFFICIENT; TRIHALIDE; TRANSPORT; RECOMBINATION; SENSITIZER; LENGTHS; ORIGIN; ROUTE;

D O I：

10.1016/j.nanoen.2014.04.017

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 demonstrate cesium-doping in methylammonium lead iodide perovskites (Cs(x)MA(1-x)Pbl(3)) light absorbers to improve the performance of inverted-type perovskite/fullerene planar heterojunction hybrid solar cells. Cs(x)MA(1-x)Pbl(3) perovskite devices with an optimized 10% Cs doping concentration exhibit remarkable improvement in device efficiency from 5.51% to 7.68% due to increases in short-circuit current density and open-circuit voltage via increased light absorption at optimum device thickness, improved film morphology and a widening of the energy difference between the valence band of the perovskite and lowest unoccupied molecular orbital level of PCBM. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：80 / 85

页数：6

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