Highly Efficient and Stable Perovskite Solar Cells Enabled by Low-Cost Industrial Organic Pigment Coating

被引：84

作者：

He, Qingquan ^{[1
]}

Worku, Michael ^{[2
]}

Liu, He ^{[1
]}

Lochner, Eric ^{[3
]}

Robb, Alex J. ^{[1
]}

Lteif, Sandrine ^{[1
]}

Vellore Winfred, J. S. Raaj ^{[1
]}

Hanson, Kenneth ^{[1
]}

Schlenoff, Joseph B. ^{[1
]}

Kim, Bumjoon J. ^{[4
]}

Ma, Biwu ^{[1
,2
]}

机构：

[1] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

[2] Florida State Univ, Mat Sci & Engn Program, Tallahassee, FL 32306 USA

[3] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[4] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Daejeon 34141, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2021年 / 60卷 / 05期

基金：

美国国家科学基金会; 新加坡国家研究基金会;

关键词：

hydrophobicity; perovskite solar cells; quinacridone; stability; surface passivation; PERFORMANCE; STABILITY; DEFECTS;

D O I：

10.1002/anie.202012095

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surface passivation of perovskite solar cells (PSCs) using a low-cost industrial organic pigment quinacridone (QA) is presented. The procedure involves solution processing a soluble derivative of QA, N,N-bis(tert-butyloxycarbonyl)-quinacridone (TBOC-QA), followed by thermal annealing to convert TBOC-QA into insoluble QA. With halide perovskite thin films coated by QA, PSCs based on methylammonium lead iodide (MAPbI(3)) showed significantly improved performance with remarkable stability. A PCE of 21.1 % was achieved, which is much higher than 18.9 % recorded for the unmodified devices. The QA coating with exceptional insolubility and hydrophobicity also led to greatly enhanced contact angle from 35.6 degrees for the pristine MAPbI(3) thin films to 77.2 degrees for QA coated MAPbI(3) thin films. The stability of QA passivated MAPbI(3) perovskite thin films and PSCs were significantly enhanced, retaining about 90 % of the initial efficiencies after more than 1000 hours storage under ambient conditions.

引用

页码：2485 / 2492

页数：8

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