Effects of reduction temperature on the optoelectronic properties of diodes based on n-type Si and reduced graphene oxide doped with a conductive polymer

Jian Jhou Zeng, Cheng He Ruan, Jian Huang Lin, Yow-Jon Lin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The effect of reduction temperature on the optoelectronic properties of diodes based on n-type Si and reduced graphene oxide (RGO) doped with a conductive polymer [poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT:PSS)] was examined in this study. It is found that conductivity of RGO-doped PEDOT:PSS films increases with increasing reduction temperature of graphene oxide (GO) sheets. The improvement of electrical conductivity is considered to mainly come from the carrier mobility enhancement. In addition, the ideality factor of n-type Si/RGO-doped PEDOT:PSS diodes decreases with increasing reduction temperature of GO sheets. The device-performance improvement originates from high-mobility hole transport combined with long-lifetime electron trapping in the RGO-doped PEDOT:PSS film. In addition, note that a suitable reduction temperature is an important issue for improving the device performance.

Original languageEnglish
Article number065008
JournalSemiconductor Science and Technology
Volume28
Issue number6
DOIs
Publication statusPublished - 2013 Jun 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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