Tregnago, G;
Cacialli, F;
Steckler, TT;
Andersson, MR;
Fenwick, O;
(2015)
Thia- and selena-diazole containing polymers for near-infrared light-emitting diodes.
Journal of Materials Chemistry C
, 3
(12)
2792 - 2797.
10.1039/c5tc00118h.
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Abstract
We report the optical characterization of near-infrared (NIR) emitters for polymer light-emitting diode (PLEDs) applications based on the copolymerization of a phthalimide-thiophene host polymer with a low-gap emitter containing the bisthienyl(benzotriazolothiadiazole) unit. We investigate different loadings of the low-gap emitter (in the range 1-3% by weight) and the substitution of a sulphur atom with a selenium atom to further extend the emission in the NIR up to 1000 nm. PLEDs based on copolymers with 1% loading give the best efficiency (0.09%) and show an almost pure NIR EL (95% in the NIR) peaking at 895 nm.
| Type: | Article |
|---|---|
| Title: | Thia- and selena-diazole containing polymers for near-infrared light-emitting diodes |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/c5tc00118h |
| Publisher version: | http://dx.doi.org/10.1039/c5tc00118h |
| Language: | English |
| Additional information: | Copyright © Royal Society of Chemistry 2015. This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1462920 |
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