Study of surface photovoltage spectra of MEH-PPV

Bonan Kang*, Zonghao Huang, Tengfeng Sie, Lichun Chen, Dejun Wang, Yuchun Chang, Yang Liu, Junfeng Song, Rongshun Wang, R. P.H. Chang, Guotong Du

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Surface photovoltage spectra studies are performed on thin films of poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] in order to determine its photoelectric properties. We find that a localized subgap electronic transition causes the photovoltaic response with polarity opposite to that from the band-to-band electronic transition (π-π*). This transition is from the valence band to a local state in the conduction band.

Original languageEnglish (US)
Pages (from-to)151-154
Number of pages4
JournalDisplays
Volume22
Issue number4
DOIs
StatePublished - Sep 1 2001

Keywords

  • Electron transition
  • Local state
  • MEH-PPV
  • Surface photovoltage

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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