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

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 inter-chain hopping mechanisms. The LF dependent muon-spin depolarization rate indicates the occurrence of pronou...

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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2010-06, Vol.405 (11), p.S381-S383
Hauptverfasser:	Risdiana, Fitrilawati, Hidayat, R., Nugroho, A.A., Siregar, R.E., Tjia, M.O., Watanabe, I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Diffusion Diffusion rate Electron states Exact sciences and technology Magnetic properties Magnetic resonances and relaxations in condensed matter, mössbauer effect Muon spin rotation and relaxation Muon-spin-relaxation Muons Particle spin Physics Polarons and electron-phonon interactions Polythiophene Regio-random poly(3-hexylthiophene-2,5-diyl) Spin diffusion
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Zusammenfassung:	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 inter-chain 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 regio-regular case.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2010.01.080