Thia- and selena-diazole containing polymers for near-infrared light-emitting diodes
Artikel i vetenskaplig tidskrift, 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.

Författare

G. Tregnago

University College London (UCL)

Timothy Steckler

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

O. Fenwick

Universite de Strasbourg

Mats Andersson

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Polymerteknologi

F. Cacialli

University College London (UCL)

Journal of Materials Chemistry C

20507534 (ISSN) 20507526 (eISSN)

Vol. 3 12 2792-2797

Ämneskategorier

Textil-, gummi- och polymermaterial

DOI

10.1039/c5tc00118h