期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 106, 期 12, 页码 3061-3064出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp012601y
关键词
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Polypyrrole and polypyrrole-tetracyanoquinodinodimethane (TCNQ) have been prepared to see the energy band structure modification and associated change in the electrical and optoelectrical properties. The temperature-dependent electrical conductivity of the samples show interesting behavior, namely, higher room-temperature conductivity of polypyrrole-TCNQ and a crossover phenomenon which may be considered as a competition between two opposing factors, charge-transfer interaction and disorderness. CHN microanalysis, UV-vis absorption spectroscopy, and positron annihilation lifetime spectroscopy corroborate the findings.
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