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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2013

Title: Optical and EPR spectroscopy in pure and blended films of a novel low band gap polymer
Authors: Aguirre, Aranzazu
Janssen, G
Goovaerts, E
COLLADET, Kristof
VANDERZANDE, Dirk
LUTSEN, Laurence
Issue Date: 2006
Publisher: EDP SCIENCES S A
Citation: EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 36(3). p. 285-287
Abstract: Efficient charge transfer between a newly synthesized low band gap (LBG) conjugated polymer and the C-60 derivative PCBM is demonstrated. Spectral and time-resolved photoluminescence (PL) measurements show strong quenching and charge separation in the picosecond time range. The charge transfer is further confirmed by light-induced electron paramagnetic resonance (EPR) measurements of both the positive polarons and the fullerene radicals, which can be resolved in high-frequency EPR. The potential for the LBG polymer to act as acceptor was examined in blends with the para-phenylene-vinylene polymer MDMO-PPV. No charge transfer, but instead energy transfer from MDMO-PPV to LBG occurs in these blends, as shown by PL spectroscopy.
Notes: Univ Antwerp VIB, Dept Phys, CDE, B-2610 Antwerp, Belgium. Hasselt Univ, Inst Mat Res, IMO, B-3590 Diepenbeek, Belgium. IMEC, Div IMOMEC, B-3590 Diepenbeek, Belgium.Aguirre, A, Univ Antwerp VIB, Dept Phys, CDE, Univ Plein 1, B-2610 Antwerp, Belgium.etienne.goovaerts@ua.ac.be
URI: http://hdl.handle.net/1942/2013
DOI: 10.1051/epjap:2006143
ISI #: 000243397900015
ISSN: 1286-0042
Category: A1
Type: Journal Contribution
Validation: ecoom, 2008
Appears in Collections: Research publications

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