1 micron wavelength photo- and electroluminescence from a conjugated polymer
- 3 May 2004
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 84 (18) , 3570-3572
- https://doi.org/10.1063/1.1737064
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%.Keywords
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