Electrical and Optical Properties of the Iodine Complexes of Phenoxazine, Phenoselenazine, and Benzophenothiazines
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概要
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The electrical resistivities and Seebeck coefficients of the 2 : 3 iodine complexes of phenoxazine, phenoselenazine, and benzophenothiazines were measured as a function of the temperature. They have resistivity values at 20°C ranging from 10 ohm·cm for the phenoxazine complex to 34 ohm·cm for the benzo[<I>a</I>]phenothiazine complex. Employing the equation of Johnson and Lark-Horowitz for the Seebeck coefficient of an intrinsic semiconductor, the ratio of the electron-to-hole mobility in the phenoselenazine complex was found to be 1.07 and the electron mobility was estimated as 0.26 cm<SUP>2</SUP>/V sec. By an examination of the vibrational spectra, the expected cation-radical character was confirmed for the complexes of phenoselenazine and benzophenothiazines. The presence of a broad electronic absorption band in the rock-salt region characteristic of low-resistivity organic semiconductors was noted in every case.
- 公益社団法人 日本化学会の論文
著者
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Matsunaga Yoshio
Department of Chemistry, Faculty of Science, Hokkaido University
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Suzuki Yukio
Department of Chemistry, Faculty of Science, Hokkaido University
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