TITLE

1 micron wavelength photo- and electroluminescence from a conjugated polymer

AUTHOR(S)
Chen, Miaxiang; Perzon, Erik; Andersson, Mats R.; Marcinkevicius, Saulius; Jönsson, S.K.M.; Fahlman, Mats; Berggren, Magnus
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/3/2004, Vol. 84 Issue 18, p3570
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report photo- and electroluminescence from an alternating conjugated polymer consisting of fluorene units and low-band gap donor-acceptor-donor (D–A–D) units. The D–A–D segment includes two electron-donating thiophene rings combined with a thiadiazolo-quinoxaline unit, which is electron withdrawing to its nature. The resulting polymer is conjugated and has a band gap of 1.27 eV. The corresponding electro- and photoluminescence spectra both peak at approximately 1 μm. Light-emitting diodes, based on a single layer of the polymer, demonstrated external quantum efficiencies from 0.03% to 0.05%. © 2004 American Institute of Physics.
ACCESSION #
12930030

 

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