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File
language
eng
Author
Yoshida, Yuki
Tanaka, Senku Center for Integrated Research in Science, Shimane University
Hiromitsu, Ichiro Faculty of Science and Engineering, Shimane University
Fujita, Yasuhisa Faculty of Science and Engineering, Shimane University
Yoshino, Katsumi Collaboration Center, Shimane University
Description
The photovoltaic properties of Zn?phthalocyanine (ZnPc)/3,4,9,10-perylene-tetracarboxyl-bis-benzimidazole (PTCBI) heterojunction solar cells using Ga-doped ZnO (GZO) film as a transparent electrode are studied. When GZO is the electrode in contact with the donor layer, i.e., ZnPc, the energy conversion efficiency η is only 1/4 of that for the cell using indium?tin-oxide (ITO) as the electrode. When GZO is the electrode in contact with the acceptor layer, i.e., PTCBI, on the other hand, the cell has a three times larger η than the cell using ITO. These results are explained by the work function of GZO being lower than that of ITO. When GZO, or ITO, is used as an electrode for PTCBI, an interesting aging effect is observed. For example, by keeping the GZO-based cell in open air for 6 days in the dark, the energy conversion efficiency and the short-circuit current are increased by factors of 1.67 and 1.36, respectively.
Subject
solar cells
organic semiconductors
heterojunction
zinc oxide
transparent electrode
Journal Title
Japanese Journal of Applied Physics
Volume
47
Issue
2R
Start Page
867
End Page
871
ISSN
00214922
Published Date
2008-02-25
DOI
DOI Date
2016-01-08
NCID
AA12295836
Publisher
公益社団法人応用物理学会
Publisher Aalternative
Japanese Journal of Applied Physics
NII Type
Journal Article
Format
PDF
Rights
公益社団法人応用物理学会
Text Version
著者版
OAI-PMH Set
Interdisciplinary Center for Science Research
Department of Mechanical, Electrical and Electronic Engineering, Interdisciplinary Graduate School of Science and Engineering
Collaboration Center
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