Enhancing Fullerene-Based Solar Cell Lifetimes by Addition of a Fullerene Dumbbell

被引：82

作者：

Schroeder, Bob C. ^{[1
,2
]}

Li, Zhe ^{[1
,2
]}

Brady, Michael A. ^{[3
]}

Faria, Gregorio Couto ^{[4
,6
]}

Ashraf, Raja Shahid ^{[1
,2
]}

Takacs, Christopher J. ^{[3
]}

Cowart, John S. ^{[3
]}

Duong, Duc T. ^{[4
]}

Chiu, Kar Ho ^{[1
,2
]}

Tan, Ching-Hong ^{[1
,2
]}

Cabral, Joao T. ^{[2
,5
]}

Salleo, Alberto ^{[4
]}

Chabinyc, Michael L. ^{[3
]}

Durrant, James R. ^{[1
,2
]}

McCulloch, Iain ^{[1
,2
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

[2] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England

[3] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[4] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[5] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn, London SW7 2AZ, England

[6] Univ Sao Paulo, Sao Carlos Phys Inst, BR-13560970 Sao Carlos, SP, Brazil

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 47期

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

fullerenes; lifetime; organic solar cells; photovoltaics; stability; CONJUGATED POLYMERS; EFFICIENT; TANDEM; FILMS; PCBM; C-60;

D O I：

10.1002/anie.201407310

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cost-effective, solution-processable organic photo-voltaics (OPV) present an interesting alternative to inorganic silicon-based solar cells. However, one of the major remaining challenges of OPV devices is their lack of long-term operational stability, especially at elevated temperatures. The synthesis of a fullerene dumbbell and its use as an additive in the active layer of a PCDTBT:PCBM-based OPV device is reported. The addition of only 20% of this novel fullerene not only leads to improved device efficiencies, but more importantly also to a dramatic increase in morphological stability under simulated operating conditions. Dynamic secondary ion mass spectrometry (DSIMS) and TEM are used, amongst other techniques, to elucidate the origins of the improved morphological stability.

引用

页码：12870 / 12875

页数：6

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