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Proceedings Paper

Time-resolved photocarrier generation in conjugated polymers
Author(s): Arthur Dogariu; Daniel Moses; Alan J. Heeger
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Paper Abstract

We demonstrate ultrafast (100 fs) carrier generation in poly(phenylene vinylene), PPV, and poly[2-methoxy-5-(2- ethyl-hexyloxy)-(phenylene vinylene)], MEH-PPV, by using femtosecond transient spectroscopy in the mid-IR in order to probe the infrared active vibrational active (IRAV) modes. The 10% carrier generation quantum efficiency in MEH-PPV with no electric field applied, implies primary photogeneration of charge carriers. The recombination dynamics in PPV and MEH-PPV indicate that the carrier lifetime is sensitive to the strength of the interchain interaction.

Paper Details

Date Published: 17 December 1999
PDF: 6 pages
Proc. SPIE 3797, Organic Light-Emitting Materials and Devices III, (17 December 1999); doi: 10.1117/12.372738
Show Author Affiliations
Arthur Dogariu, Univ. of California/Santa Barbara (United States)
Daniel Moses, Univ. of California/Santa Barbara (United States)
Alan J. Heeger, Univ. of California/Santa Barbara (United States)


Published in SPIE Proceedings Vol. 3797:
Organic Light-Emitting Materials and Devices III
Zakya H. Kafafi, Editor(s)

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