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Proceedings Paper

Structural basis for luminescence from poly(3-alkylthiophenes)
Author(s): Bai Xu; Steven Holdcroft
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Paper Abstract

Photophysical properties of poly (3-hexylthiophenes) (P3HT) possessing various degrees of regioregularity have been investigated. Wavelengths of emission are blue-shifted for polymers possessing twisted head-to-head (HH) dyads. Quantum yields of luminescence from polymer solutions decreases with increasing head-to-head dyad content of the polymer whereas the reverse is true in thin solid films. The latter can be explained by classical concentration quenching effects which arise from non-emissive excimer complexes. This constitutes an intermolecular decay of excitation.

Paper Details

Date Published: 27 August 1993
PDF: 4 pages
Proc. SPIE 1910, Electroluminescent Materials, Devices, and Large-Screen Displays, (27 August 1993); doi: 10.1117/12.151164
Show Author Affiliations
Bai Xu, Simon Fraser Univ. (Canada)
Steven Holdcroft, Simon Fraser Univ. (Canada)

Published in SPIE Proceedings Vol. 1910:
Electroluminescent Materials, Devices, and Large-Screen Displays
Esther M. Conwell; Milan Stolka; M. Robert Miller, Editor(s)

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