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
O. Fenwick
Université de Strasbourg
Mats Andersson
Chalmers, Kemi och kemiteknik, Tillämpad kemi
F. Cacialli
University College London (UCL)
Journal of Materials Chemistry C
20507526 (ISSN) 20507534 (eISSN)
Vol. 3 12 2792-2797Ämneskategorier
Textil-, gummi- och polymermaterial
DOI
10.1039/c5tc00118h