High-Molecular-Weight Insulating Polymers Can Improve the Performance of Molecular Solar Cells

被引:111
作者
Huang, Ye [1 ,2 ]
Wen, Wen [1 ,2 ]
Mukherjee, Subhrangsu [3 ]
Ade, Harald [3 ]
Kramer, Edward J. [4 ]
Bazan, Guillermo C. [1 ,2 ,5 ]
机构
[1] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Dept Chem, Ctr Energy Efficient Mat, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Dept Biochem, Ctr Energy Efficient Mat, Santa Barbara, CA 93106 USA
[3] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA
[4] Univ Calif Santa Barbara, Dept Chem Engn, Dept Mat, Santa Barbara, CA 93106 USA
[5] King Abzulaziz Univ, CEAMR, Jeddah, Saudi Arabia
关键词
organic solar cells; morphology; non-conductive polystyrene; small molecules; processing; X-RAY MICROSCOPY; THIN-FILMS; MORPHOLOGY; EFFICIENCY; ADDITIVES; BENZODITHIOPHENE; SPECTROSCOPY; BLENDS;
D O I
10.1002/adma.201400497
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The addition of small quantities of polystyrene (PS) is a simple and economically viable process that improves the power conversion efficiency of one of the most efficient small molecule donors. Addition of PS increases the solution viscosity, thereby providing thicker layers, and allows the formation of a desirable bulk heterojunction morphology. Moreover, the PS spontaneously accumulates as phase separated domains, away from the electrodes, so as not to interfere with charge extraction. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:4168 / 4172
页数:5
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