Fluorescence light emission at 1 eV from a conjugated polymer
Artikel i vetenskaplig tidskrift, 2010

While polymer light-emitting diodes are currently finding commercial applications in displays and lighting, the development of low bandgap polymers emitting in the infrared has received much less attention in spite of potential applications for instance in the field of communication technologies. We report here a light emission at 1 eV from a low bandgap polymer made of an alternation of dialkoxy-phenylene units and a low bandgap monomer composed of an electron accepting 2-thia-1,3,5,8-tetraaza-cyclopenta[b]naphthalene group fenced with electron donating thiophene units. The electronic structure of the polymer chains has been characterized at a quantum-chemical level to shed light into the experimental results. (C) 2010 Published by Elsevier B.V.

band-gap polymers




photovoltaic devices


G. Tzamalis

Linköpings universitet

V. Lemaur

Universite de Mons

F. Karlsson

Linköpings universitet

P. O. Holtz

Linköpings universitet

Mats Andersson

Chalmers, Kemi- och bioteknik, Polymerteknologi

X. Crispin

Linköpings universitet

J. Cornil

Universite de Mons

M. Berggren

Linköpings universitet

Chemical Physics Letters

0009-2614 (ISSN)

Vol. 489 1-3 92-95


Fysikalisk kemi



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