Enhancement of the carrier mobility of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) by incorporating reduced graphene oxide

Yow Jon Lin, Jian Jhou Zeng, Cheng Lung Tsai

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Abstract

The investigation of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT:PSS) having the reduced graphene oxide (RGO), denoted RGO-doped PEDOT:PSS shows that conductivity of RGO-doped PEDOT:PSS samples is 27 times higher than that of PEDOT:PSS at 300 K. The improved electrical conductivity is considered to mainly come from the mobility enhancement. The carrier mobility in RGO-doped PEDOT:PSS samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. An exhibition of high mobility of RGO-doped PEDOT:PSS samples is attributed to the increased spacing between molecules.

Original languageEnglish
Article number053305
JournalApplied Physics Letters
Volume101
Issue number5
DOIs
Publication statusPublished - 2012 Jul 30

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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