Soluble P3HT-Grafted Graphene for Efficient Bilayer-Heterojunction Photovoltaic Devices

被引：349

作者：

Yu, Dingshan ^{[2
]}

Yang, Yan ^{[3
]}

Durstock, Michael ^{[1
]}

Baek, Jong-Beom ^{[4
]}

Dai, Liming ^{[2
]}

机构：

[1] USAF, Res Lab, Mat & Mfg Directorate, RXBP, Wright Patterson AFB, OH 45433 USA

[2] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA

[3] New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA

[4] UNIST, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea

来源：

ACS NANO | 2010年 / 4卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

graphene; poly(3-hexylthiophene); end-functionalization; solution processing; solar cells; POLYTHIOPHENE; MORPHOLOGY; OXIDE; COPOLYMERS; COMPOSITE; POLYMERS; FILMS;

D O I：

10.1021/nn101671t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CH2OH-terminated regioregular poly(3-hexylthiophene) (P3HT) was chemically grafted onto carboxylic groups of graphene oxide (GO) via esterification reaction. The resultant P3HT-grafted GO sheets (G-P3HT) are soluble in common organic solvents, facilitating the structure/property characterization and the device fabrication by solution processing. The covalent linkage and the strong electronic interaction between the P3HT and graphene moieties in G-P3HT were confirmed by spectroscopic analyses and electrochemical measurements. A bilayer photovoltaic device based on the solution-cast G-P3HT/C-60 heterostructures showed a 200% increase of the power conversion efficiency (eta = 0.61%) with respect to the P3HT/C-60 counterpart under AM 1.5 illumination (100 mW/cm(2)).

引用

页码：5633 / 5640

页数：8

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