A side chain-modified quaterthiophene derivative for enhancing the performance of organic solar cell devices

被引：16

作者：

Cha, Hyojung ^{[2
]}

Park, Jong Won ^{[3
]}

Chung, Dae Sung ^{[4
]}

An, Tae Kyu ^{[2
]}

Kim, Yun-Hi ^{[1
]}

Kwon, Soon-Ki ^{[3
]}

Park, Chan Eon ^{[2
]}

机构：

[1] Gyeongsang Natl Univ, Dept Chem, Jinju 660701, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Polymer Res Inst, POSTECH Organ Elect Lab, Pohang 790784, South Korea

[3] Gyeongsang Natl Univ, Engn Res Inst, Dept Sch Mat Sci & Engn, Jinju 660701, South Korea

[4] Dong A Univ, Dept Chem Engn, Pusan 604714, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 30期

基金：

新加坡国家研究基金会;

关键词：

POLYMER PHOTOVOLTAIC CELLS; EFFICIENCY; POLYTHIOPHENES; SUBSTITUTION; MORPHOLOGY;

D O I：

10.1039/c2jm32354k

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：

A conjugated polymer donor material, poly(3,4'''-di(decylthiophenyl) quaterthiophene) (PDTQT), featuring decylthiophenyl side chains on the polymer backbone, was introduced to reduce the crystallinity of poly(quaterthiophene) (PQT-C12) layers in organic photovoltaic cells. The resulting PDTQT: PC71BM blend active layer formed a well-interpenetrated nanoscale morphology that increased the power conversion efficiency (PCE) relative to devices based on highly crystalline PQT-C12. Bulk heterojunction solar cells fabricated using the PDTQT: PC71BM blend thin films yielded the best photovoltaic performances with a high short-circuit current density of 9.8 mA cm(-2), a high open-circuit voltage of 0.91 V, a fill factor of 0.36, and a high PCE of 3.2% under AM 1.5G illumination with an intensity of 100mW cm(-2). Decylthiophenyl side chain substitution appeared to be an effective strategy for obtaining high organic photovoltaic cell device performances.

引用

收藏

页码：15141 / 15145

页数：5

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