Fullerene-Grafted Graphene for Efficient Bulk Heterojunction Polymer Photovoltaic Devices

被引：194

作者：

Yu, Dingshan ^{[1
]}

Park, Kyusoon ^{[2
]}

Durstock, Michael ^{[3
]}

Dai, Liming ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Chem Engn, Dept Macromol Sci & Engn, Case Sch Engn, Cleveland, OH 44106 USA

[2] LS Mtron Ltd, Adv R&D Ctr, Components Technol Grp, Anyang 431080, Gyeonggi Do, South Korea

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

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 10期

关键词：

CARBON NANOTUBES; RAMAN-SPECTRA; FILMS; OXIDE; C-60; TRANSPARENT; ROUTE;

D O I：

10.1021/jz200428y

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 simple lithiation reaction was developed to covalently attach monosubstituted C-60 onto graphene nanosheets. Detailed spectroscopic (e.g., Fourier transform infrared, Raman) analyses indicated that C-60 molecules were covalently attached onto the graphene surface through monosubstitution. Transmission electron microscopic (TEM) observation revealed that these monosubstituted C-60 moieties acted as nucleation centers to promote the formation of C-60 aggregates of similar to 5 nm in diameter on the graphene surface. The resultant C-60-grafted graphene nanosheets were used as electron acceptors in poly-(3-hexylthiophene)-based bulk heterojunction solar cells to significantly improve the electron transport, and hence the overall device performance, yielding a power conversion efficiency of similar to 1.22%.

引用

页码：1113 / 1118

页数：6

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