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1 micron wavelength photo- and electroluminescence from a conjugated polymer
KTH, Superseded Departments, Physics.ORCID iD: 0000-0002-4606-4865
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2004 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 84, no 18, 3570-3572 p.Article in journal (Refereed) Published
Abstract [en]

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 mum. Light-emitting diodes, based on a single layer of the polymer, demonstrated external quantum efficiencies from 0.03% to 0.05%.

Place, publisher, year, edition, pages
2004. Vol. 84, no 18, 3570-3572 p.
Keyword [en]
light-emitting-diodes, polythiophenes, donor
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-23363DOI: 10.1063/1.1737064ISI: 000221062500046ScopusID: 2-s2.0-2542452039OAI: diva2:342061
QC 20100525 QC 20111025Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-11-29Bibliographically approved

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