Efficient electroluminescence in regioregular polyalkylthiophene light-emitting diodes

P. Barta , J. Sanetra , Małgorzata Zagórska

Abstract

The regioregular poly(3-alkylthiophenes) (PATs) were used as active materials in polymer-based light-emitting diodes (LEDs). Bright green electroluminescence (EL), peaked at 540 nm, was observed with quantum efficiency of about 0.5\% photons/electron. Polymers with different lengths of alkyl side groups were used. This fact however did not change EL yield and peak position. Additionally, optical absorption and photoluminescence spectra are presented. Finally, the presented data are referred to the recently published theoretical results on the photoexcited species in oligothiophenes.
Author P. Barta
P. Barta,,
-
, J. Sanetra
J. Sanetra,,
-
, Małgorzata Zagórska KChTP
Małgorzata Zagórska,,
- Chair Of Polymer Chemistry And Technology
Journal seriesSynthetic Metals, ISSN 0379-6779
Issue year1998
Vol94
No1
Pages119-121
Keywords in Englishdiodes, electroluminescence, polythiophene and derivatives
DOIDOI:10.1016/S0379-6779(97)04156-8
URL http://www.sciencedirect.com/science/article/pii/S0379677997041568
Score (nominal)30
Publication indicators WoS Impact Factor: 2006 = 1.685 (2) - 2007=1.681 (5)
Citation count*25 (2015-02-22)
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