Amorphous Photochromic Films for Near-field Optical Recording
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概要
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A dithienylethene derivative having bulky substituents, 1,2-bis(5-(2,4-diphenylphenyl)-2,4-dimethyl-3-thienyl)perfluorocyclopentene (1a) was synthesized in an attempt to prepare photochromic amorphous films. 1a formed a stable bulk amorphous state at room temperature and the glass transition temperature was observed at 82°C. The conversion ratio from 1a to the closed-ring isomer (1b) upon irradiation with 303 nm light was as high as 73% in the amorphous film. Rewritable photon-mode near-field optical recording was demonstrated with the amorphous thin film of 1b.
- 2003-06-15
著者
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Kim Myeong-suk
Fukuoka Industry Science And Technology Foundation Fukuoka-ist
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Sakata Tadafumi
Department Of Chemistry And Biochemistry Graduate School Of Engineering Kyushu University
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Kawai Tsuyoshi
Department Of Chemistry And Biochemistry Graduate School Of Engineering Kyushu University
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Irie Masahiro
Department Of Advanced Material Study Kyushu University
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Sakata Tadafumi
Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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