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Enhancement of room temperature electrical conductivity of polypyrrole by chemical modification
S CHAKRABARTI, D BANERJEE, R BHATTACHARYYA
Published in AMER CHEMICAL SOC
2002
Volume: 106
   
Issue: 12
Pages: 3061 - 3064
Abstract
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 roomtemperature 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.
About the journal
JournalJournal of Physical Chemistry B
PublisherAMER CHEMICAL SOC
ISSN1089-5647