Choice of electrode geometry for accurate measurement of organic photovoltaic cell performance

被引：87

作者：

Kim, Myung-Su ^{[1
]}

Kang, Myung-Gyu ^{[2
]}

Guo, L. Jay. ^{[2
]}

Kim, Jinsang ^{[1
,3
,4
]}

机构：

[1] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Dept Comp Sci & Elect Engn, Ann Arbor, MI 48109 USA

[3] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA

[4] Univ Michigan, Dept Macromol Sci & Engn, Ann Arbor, MI 48109 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 13期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2895058

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The relationship between the performance and the electrode geometry of organic photovoltaic devices was investigated to establish the proper electrode geometry for reproducible and accurate performance measurement. Photovoltaic cells (ITO/PEDOT:PSS/P3HT+PCBM/LiF/Al) having crossbar-type and island-type electrode geometries were fabricated. The crossbar-type cells varied greatly in performance depending on the illuminated light beam size relative to the overlap area of the crossbar-type electrodes due to excess photocurrent generated from the cell region outside the overlapped electrode area, where PEDOT:PSS serves as anode. We systematically investigated the relationship between the conductivity of the PEDOT:PSS, the illumination area, and the amount of excess photocurrent generated. (C) 2008 American Institute of Physics.

引用

页数：3

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