Suppressing series resistance in organic solar cells by oxygen plasma treatment

被引:16
作者
Lin, Chien-Hung [6 ,7 ]
Tseng, Shao-Chin [5 ]
Liu, Yuan-Kui [5 ]
Tai, Yian [4 ]
Chattopadhyay, Surojit [3 ]
Lin, Chi-Feng [6 ,7 ]
Lee, Jiun-Haw [6 ,7 ]
Hwang, Jih-Shang [5 ]
Hsu, Yung-Yu [4 ]
Chen, Li-Chyong [1 ]
Chen, Wei-Chao [2 ]
Chen, Kuei-Hsien [2 ]
机构
[1] Natl Taiwan Univ, Ctr Condensed Mat Sci, Taipei 106, Taiwan
[2] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
[3] Natl Yang Ming Univ, Inst Biophoton Engn, Taipei 112, Taiwan
[4] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 106, Taiwan
[5] Natl Taiwan Ocean Univ, Inst Optoelect Sci, Chilung 20224, Taiwan
[6] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 106, Taiwan
[7] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan
关键词
Electric resistance - Gold - Oxygen - Plasma applications - X ray photoelectron spectroscopy;
D O I
10.1063/1.2940236
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate a low series resistance contact of gold (anode)/zinc-phthalocyznine in a reverse organic photovoltaic device aided by oxygen plasma treatment. The power conversion efficiency appreciated from 0.2% to 2.13%, post O-2 plasma treatment, predominantly due to the reduction in the series resistance of the device. A depth profile of zinc from x-ray photoelectron spectroscopy study revealed a gold layer with graded zinc composition, instead of pure gold, to be an efficient hole-collector from the organic interface. The zinc alloying of the gold layer has clearly been promoted by the oxygen plasma treatment. (C) 2008 American Institute of Physics.
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页数:3
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