Organic electronics from perylene to organic photovoltaics: painting a brief history with a broad brush

被引:131
作者
Brunetti, Fulvio G. [1 ]
Kumar, Rajeev [2 ]
Wudl, Fred [1 ,2 ]
机构
[1] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Mat, Ctr Polymers & Organ Solids, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
关键词
POLYMER SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; BAND-GAP POLYMERS; FIELD-EFFECT TRANSISTORS; WALLED CARBON NANOTUBES; CONJUGATED POLYMERS; ELECTROCHEMICAL PROPERTIES; CONDUCTING POLYMER; SPECTRAL RESPONSE; BLOCK-COPOLYMER;
D O I
10.1039/b921677d
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
The past ten years have witnessed the development of bulk-heterojunction (BHJ) solar cells, which have emerged as an attractive renewable energy source in response to rising energy costs and environmental pollution. In such a solar cell, charge transfer at the donor-acceptor interface is a crucial aspect that significantly affects overall device efficiency. Therefore, the choice of these two components and their design are important factors for the optimization of plastic solar cells (PSCs). This feature article correlates the performance of the device to the active layer composites, analyzing the motivations behind specific BHJ designs. Several low-bandgap polymers are described based on their different donor-acceptor units and their influence on both the optical absorption and the electrochemical properties. As for the accepting materials, we examine the effect of chemical functionalization in a series of fullerene derivatives, carbon nanotubes and non-fullerene based compounds on their performances in PSCs. The understanding of film-morphology control is also briefly discussed.
引用
收藏
页码:2934 / 2948
页数:15
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