Electrode-less Measurement of Conductivity Transients in Poly(n-alkylthiophene)s induced by 193nm Photoexcitation

Electrode-less Measurement of Conductivity Transients in Poly(n-alkylthiophene)s induced by 193nm Photoexcitation

Transient electric conductivity of regioregular and random poly(n-alkylthiophene)s films were investigated by time-resolved microwave conductivity upon exposure to 193 nm laser. In the presence of electron acceptor: perylene carboxydiimide, the decays of charge carriers were decelerated while those...

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Veröffentlicht in:Journal of Photopolymer Science and Technology 2008/06/24, Vol.21(4), pp.559-562
Hauptverfasser: Saeki, Akinori, Ohsaki, Shin-ichi, Koizumi, Yoshihiko, Seki, Shu, Tagawa, Seiichi
Format: Artikel
Sprache:eng
Schlagworte:
Chains
charge carrier
Decay
Decay rate
Deceleration
Electrical conductivity
Lasers
microwave conductivity
Microwaves
perylene carboxydiimide
Photoexcitation
polythiophenes
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Zusammenfassung:Transient electric conductivity of regioregular and random poly(n-alkylthiophene)s films were investigated by time-resolved microwave conductivity upon exposure to 193 nm laser. In the presence of electron acceptor: perylene carboxydiimide, the decays of charge carriers were decelerated while those induced by 355 nm were reported not to differ. We discuss the dependence of side chain length on signal intensity and decay rate.
ISSN:0914-9244
1349-6336
1349-6336
DOI:10.2494/photopolymer.21.559