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Proceedings Paper

Photoexcitation dynamics in C60-doped PPV under bias illumination
Author(s): Paul A. Lane; Martin Liess; Xing Wei; Z. Valy Vardeny; Zakya H. Kafafi
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Paper Abstract

We have studied photoexcitation dynamics in pristine and C60-doped PPV films under bias illumination by photoinduced absorption (PA), optically-detected magnetic resonance (ODMR), and electromodulated PA (EPA). Intrachain polaron pair species are the dominant excitations under these conditions. The polaron pairs on the polymer chains are identified in ODMR by the existence of an anisotropic spin- exchange interaction; their characteristics absorption spectrum is blueshifted with respect to that of isolated polarons by approximately 0.4 eV. We also identified the PPV+/C60 complexes by EPA spectroscopy.

Paper Details

Date Published: 16 December 1996
PDF: 10 pages
Proc. SPIE 2854, Fullerenes and Photonics III, (16 December 1996); doi: 10.1117/12.262972
Show Author Affiliations
Paul A. Lane, Univ. of Utah (United States)
Martin Liess, Univ. of Utah (United States)
Xing Wei, Univ. of Utah (United States)
Z. Valy Vardeny, Univ. of Utah (United States)
Zakya H. Kafafi, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 2854:
Fullerenes and Photonics III
Zakya H. Kafafi, Editor(s)

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