Improvement of Interfacial Contacts for New Small-Molecule Bulk-Heterojunction Organic Photovoltaics

被引：141

作者：

Garcia, Andres ^{[1
,2
]}

Welch, Gregory C. ^{[2
,3
]}

Ratcliff, Erin L.

Ginley, David S. ^{[1
,2
,4
]}

Bazan, Guillermo C. ^{[2
,3
]}

Olson, Dana C. ^{[1
,2
,4
]}

机构：

[1] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA

[2] Univ Calif Santa Barbara, Ctr Energy Efficient Mat, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[4] Univ Arizona, Ctr Interface Sci Solar Elect Mat, Tucson, AZ USA

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 39期

基金：

美国国家科学基金会;

关键词：

Organic Solar Cells; Small Molecules; Hole transport layer; Interfacial Chemistry; Bulk-Heterojunction Organic Photovoltaics; POLYMER SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; LOW-BANDGAP POLYMER; X-RAY; EFFICIENCY; ENHANCEMENT; PERFORMANCE; LAYERS; CORE; GAP;

D O I：

10.1002/adma.201200963

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of protonation reactions between poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and a thiadiazolo[3,4-c]pyridine small-molecule donor are reported; these result in poor solar-cell performance due to a barrier for charge extraction. The use of a NiOx contact eliminates such deleterious chemical interactions and results in substantial improvements in open-circuit voltage, fill factor, and an increased power conversion efficiency from 2.3% to 5.1%. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：5368 / 5373

页数：6

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