Impedance spectroscopy on polymer-fullerene solar cells

被引：0
|
作者：
Knipper, Martin [1 ]
Parisi, Juergen
Coakley, Kevin
Waldauf, Christoph
Brabec, Christoph J.
Dyakonov, Vladimir
机构：
[1] Carl von Ossietzky Univ Oldenburg, Dept Phys, Energy & Semicond Res Lab, D-26111 Oldenburg, Germany
[2] Konarka Technol Germany, D-90443 Nurnberg, Germany
[3] Univ Wurzburg, Fac Phys & Astron, D-97074 Wurzburg, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 2007年 / 62卷 / 09期
关键词：
organic solar cells; bulk heterojunction; impedance spectroscopy; equivalent circuit;
D O I：
暂无
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：
Impedance spectroscopy is used for studying the electrical transport properties of bulk heterojunction solar cells. A replacement circuit is needed to translate the frequency response of the circuit to the individual interfaces and layers of the solar cell. As a material combination and device architecture, composites of P3HT and PCBM, sandwiched between a transparent ITO front electrode and an aluminum back electrode, as well as a polymer buffer layer were investigated. By varying the film thickness we identified an equivalent circuit capable to fit our experimental data. We found a dielectric constant for the P3HT and for the P3HT:PCBM bulk.
引用
收藏
页码：490 / 494
页数：5
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