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Intra- and inter-chain polaron diffusion in regio-random polythiophene studied by muon spin relaxation

✍ Scribed by Risdiana; Fitrilawati; R. Hidayat; A.A. Nugroho; R.E. Siregar; M.O. Tjia; I. Watanabe


Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
272 KB
Volume
405
Category
Article
ISSN
0921-4526

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✦ Synopsis


Longitudinal field (LF) muon-spin-relaxation measurements have been performed for polythiophene based polymers of regio-random poly(3-hexylthiophene-2,5-diyl) to elucidate the intra-and interchain hopping mechanisms. The LF dependent muon-spin depolarization rate indicates the occurrence of pronounced shift in the relative dominance of charge transport mechanism from intra-chain diffusion to inter-chain diffusion at 50 K which is higher than the 25 K observed previously for the regioregular case.