Increasing organic solar cell efficiency with polymer interlayers

被引:34
作者
Deschler, Felix [3 ,4 ]
Riedel, Daniel [3 ,4 ]
Ecker, Bernhard [5 ]
von Hauff, Elizabeth [5 ,6 ]
Da Como, Enrico [3 ,4 ,7 ]
MacKenzie, Roderick C. I. [1 ,2 ]
机构
[1] Univ Freiburg, Sch Soft Matter Res, FRIAS, D-79104 Freiburg, Germany
[2] Univ Nottingham, Fac Engn, Nottingham NG7 2RD, Notts, England
[3] Univ Munich, Dept Phys, D-80799 Munich, Germany
[4] Univ Munich, CeNS, D-80799 Munich, Germany
[5] Inst Phys, D-79104 Freiburg, Germany
[6] Fraunhofer Inst Solar Energy Syst ISE, D-79110 Freiburg, Germany
[7] Univ Bath, Dept Phys, Somerset BA2 7AY, England
关键词
DEVICE PERFORMANCE; RECOMBINATION; DIODES; FILMS; POLY(3-HEXYLTHIOPHENE); ABSORPTION; ELECTRODES;
D O I
10.1039/c2cp43876c
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
We demonstrate how organic solar cell efficiency can be increased by introducing a pure polymer interlayer between the PEDOT:PSS layer and the polymer: fullerene blend. We observe an increase in device efficiency with three different material systems over a number of devices. Using both electrical characterization and numerical modeling we show that the increase in efficiency is caused by optical absorption in the pure polymer layer and hence efficient charge separation at the polymer bulkheterojunction interface.
引用
收藏
页码:764 / 769
页数:6
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