Investigation of Localized Transition of MEH-PPV by SPS

Investigation of Localized Transition of MEH-PPV by SPS

The investigations of surface photovoltage spectra are performed on thin films of poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1, 4-phenylene vinylene] in order to determine its photoelectric properties. It is found that a localized subgap electronic transition causes a polarity opposite band-to-band electr...

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Veröffentlicht in:Semiconductor photonics and technology 2002, Vol.8 (3), p.145-149
1. Verfasser: KANG Bo-nan HUANG Zong-hao XIE Teng-feng CHEN Li-chun WANG De-jun CHANG Yu-chun LIU Yang SONG Jun-feng WANG Rong-shun CHANG R P H DU Guo-tong
Format: Artikel
Sprache:eng
Schlagworte:
Local
MEH-PPV
photovoltage
state
Surface
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Zusammenfassung:The investigations of surface photovoltage spectra are performed on thin films of poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1, 4-phenylene vinylene] in order to determine its photoelectric properties. It is found that a localized subgap electronic transition causes a polarity opposite band-to-band electronic transition(π-π*). This transition results in an electronic level transition from the valence band to a local state in the conduction band.
ISSN:1007-0206