ELECTROCHEMICAL PROPERTIES OF POLY(ISOTHIANAPHTHENE)

被引:23
作者
ONODA, M [1 ]
MORITA, S [1 ]
NAKAYAMA, H [1 ]
YOSHINO, K [1 ]
机构
[1] OSAKA UNIV,FAC ENGN,DEPT ELECTR ENGN,SUITA,OSAKA 565,JAPAN
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 08期
关键词
CONDUCTING POLYMER; POLY(ISOTHIANAPHTHENE); TRANSPARENCY; ELECTROCHEMICAL DOPING; ABSORPTION SPECTRUM; BAND GAP; ELECTRON SPIN RESONANCE; POLARON; BIPOLARON; ELECTRONIC STATE;
D O I
10.1143/JJAP.32.3534
中图分类号
O59 [应用物理学];
学科分类号
摘要
Electrochemical, optical, and magnetic properties of poly(isothianaphthene) as a function of doping potential and electronic states, are discussed in detail. The band gap of poly(isothianaphthene) has been evaluated to be 1.0 eV and the evolution of localized states is evidenced by the spectral change with electrochemical doping. The magnetic susceptibility evaluated from electron spin resonance measurement has exhibited the highest value at a doping potential of 3.5 V vs Li/Li+. These results are interpreted in terms of the polaron and/or bipolaron models. The electronic band structure of poly(isothianaphthene) has been determined. The top of the valence band of poly(isothianaphthene) is located at an energy state higher than that of polythiophene by about 0.5 eV. On the other hand, the bottom of the conduction band of poly(isothianaphthene) is located at an energy state lower than that of polythiophene by about 0.6 eV, suggesting successful electrochemical n-type doping.
引用
收藏
页码:3534 / 3539
页数:6
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