Thia- and selena-diazole containing polymers for near-infrared light-emitting diodes
Journal article, 2015

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.

Author

G. Tregnago

University College London (UCL)

Timothy Steckler

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

O. Fenwick

University of Strasbourg

Mats Andersson

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

F. Cacialli

University College London (UCL)

Journal of Materials Chemistry C

20507534 (ISSN) 20507526 (eISSN)

Vol. 3 12 2792-2797

Subject Categories

Textile, Rubber and Polymeric Materials

DOI

10.1039/c5tc00118h

More information

Latest update

6/8/2018 5