Enhanced Performance of Organic Photovoltaic Cells Fabricated with a Methyl Thiophene-3-Carboxylate-Containing Alternating Conjugated Copolymer

被引：20

作者：

Cho, Min Ju ^{[1
]}

Seo, Jangwon ^{[1
]}

Kim, Kyung Hwan ^{[2
]}

Choi, Dong Hoon ^{[2
]}

Prasad, Paras N. ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA

[2] Korea Univ, Res Inst Nat Sci, Dept Chem, Seoul 136701, South Korea

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2012年 / 33卷 / 02期

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

bulk heterojunction; copolymerization; conjugated polymers; PCBM; polymer solar cells; POLYMER SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; POLY(ALKYL THIOPHENE-3-CARBOXYLATES); POLYTHIOPHENES;

D O I：

10.1002/marc.201100501

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new donor-acceptor copolymer, containing benzodithiophene (BDT) and methyl thiophene-3-carboxylate (3MT) units, is designed and synthesized for polymer solar cells (PSCs). The 3MT unit is used as an electron acceptor unit in this copolymer to provide a lower highest occupied molecular orbital (HOMO) level for obtaining polymer solar cells with a higher open-circuit voltage (VOC). The resulting bulk heterojunction PSC made of the copolymer and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) exhibits a power conversion efficiency (PCE) up to 4.52%, a short circuit current (JSC) of 10.5 mA center dot cm-2, and a VOC of 0.86 V.

引用

页码：146 / 151

页数：6

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