Elsevier

Synthetic Metals

Volume 91, Issues 1–3, December 1997, Pages 301-303
Synthetic Metals

Visible electroluminescence of polyacetylene derivatives

https://doi.org/10.1016/S0379-6779(98)80046-5Get rights and content

Abstract

Electroluminescence (EL) from a series of polyacetylene derivatives such as poly[(o-iso-propylphenyl)acetylene] (PPA-iPr), poly [1-(p-n-butylphenyl)-2-phenylacetylene] (PDPA-nBu) and poly(1-hexyl-2-phenylacetylene) (PHPA) is studied. Red EL from PPA-iPr with a low efficiency, green or blue from PDPA-nBu or PHPA with a relatively high efficiency, which are sandwiched between an indium-tin oxide (ITO)-coated glass substrate and a Mg/Al cathode, have been observed. The EL efficiency of PDPA-nBu can be increased by doping electron transport molecules 2-(4-biphenylyl)-5-(4-t-butylphenyl)-1,3,4-oxadiazole (PBD), but has no effect on PHPA.

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