Tailoring of Electron-Collecting Oxide Nanoparticulate Layer for Flexible Perovskite Solar Cells

被引：96

作者：

Shin, Seong Sik ^{[1
,2
]}

Yang, Woon Seok ^{[1
,3
]}

Yeom, Eun Joo ^{[1
,4
]}

Lee, Seon Joo ^{[1
]}

Jeon, Nam Joong ^{[1
]}

Joo, Young-Chang ^{[2
]}

Park, Ik Jae ^{[2
]}

Noh, Jun Hong ^{[1
]}

Seok, Sang Il ^{[1
,3
]}

机构：

[1] Korea Res Inst Chem Technol, Div Adv Mat, 4 Gajeong Ro, Daejeon 305600, South Korea

[2] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea

[3] Ulsan Natl Inst Sci & Technol, Sch Energy & Chem Engn, 50 UNIST Gil, Ulsan 689798, South Korea

[4] Sungkyunkwan Univ, Dept Energy Sci, 2066 Seoburo, Suwon 440746, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2016年 / 7卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

EFFICIENT; PERFORMANCE; FABRICATION;

D O I：

10.1021/acs.jpclett.6b00295

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：

Low-temperature-processed perovskite solar cells (PSCs), especially those fabricated on flexible substrates, exhibit device performance that is worse than that of high-temperature-processed PSCs. One of the main reasons for the inferior performance of low-temperature-processed PSCs is the loss of photogenerated electrons in the electron collection layer (ECL) or related interfaces, i.e., indium tin oxide/ECL and ECL/perovskite. Here, we report that tailoring of the energy level and electron transporting ability in oxide ECLs using Zn2SnO4 nanoparticles and quantum dots notably minimizes the loss of photogenerated electrons in the low-temperature-fabricated flexible PSC. The proposed ECL with methylammonium lead halide [MAPb-(I0.9Br0.1)(3)] leads to fabrication of significantly improved flexible PSCs with steady-state power conversion efficiency of 16.0% under AM 1.5G illumination of 100 mW cm(-2) intensity. These results provide an effective method for fabricating high-performance, low-temperature solution-processed flexible PSCs.

引用

页码：1845 / 1851

页数：7

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