μSR Study of Charge Carrier Diffusion in Regioregular Poly(3-Butylthiophene-2,5-Diyl)
作者： Risdiana , B. Adiperdana , L. Safriani , A. Bahtiar , Fitrilawati
DOI: 10.1016/J.PHPRO.2012.04.048
关键词:
摘要: Temperature-dependent of charge carrier diffusion in regioregular-poly(3-butylthiophene-2,5-diyl) (RR-P3BT) has been studied by Longitudinal Field (LF) muon-spin-relaxation (μSR) method for determining intrachain and interchain hopping mechanisms. It is found that the depolarization rates at low temperatures below 50 K indicate H–0.5 field-dependent characteristics transport dominated mobility along polymer chain (intrachain diffusion). With an increase temperature, carriers move perpendicular to (interchain diffusion), as characterized field dependence C-H0.5 curve. The initial change appeared around 75 K.
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