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 language | English (US) |
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Pages (from-to) | 151-154 |
Number of pages | 4 |
Journal | Displays |
Volume | 22 |
Issue number | 4 |
DOIs | |
State | Published - Sep 2001 |
Funding
We gratefully acknowledge the support of the National Natural Science Foundation of China.
Keywords
- Electron transition
- Local state
- MEH-PPV
- Surface photovoltage
ASJC Scopus subject areas
- Human-Computer Interaction
- Hardware and Architecture
- Electrical and Electronic Engineering