Modified buffer layers for polymer photovoltaic devices

被引：149
作者：
Ko, Chu-Jung [1 ]
Lin, Yi-Kai
Chen, Fang-Chung
Chu, Chi-Wei
机构：
[1] Natl Chiao Tung Univ, Dept Phot, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Display Inst, Hsinchu 300, Taiwan
[3] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan
[4] Natl Nano Device Labs, Hsinchu 300, Taiwan
[5] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 06期
关键词：
D O I：
10.1063/1.2437703
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of anode buffer layers on the performance of polymer photovoltaic devices based on blends of poly(3-hexylthiophene) and [6,6]-phenyl-C-61-buytyric acid methyl ester has been investigated. The buffer layers consist of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT-PSS) doped with different concentrations of mannitol. Improved power conversion efficiency, up to 5.2%, has been observed by reducing the resistance of PEDOT:PSS after doping. One extrapolation method has been developed to exclude the resistance from the connection of the electrodes from the total device resistance. The results confirm that the device improvement is due to the reduction of series resistance of the PEDOT:PSS after the mannitol doping. (c) 2007 American Institute of Physics.
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页数：3
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