A Carbazole-Oxadiazole Diad Molecule for Single-Emitting-Component White Organic Light-Emitting Devices (WOLEDs)

Wu, Xiaoming; Wang, Li; Hua, Yulin; Wang, Changsheng; Batsanov, Andrei S.; Bryce, Martin R.

doi:10.1016/j.tet.2014.01.073

A Carbazole-Oxadiazole Diad Molecule for Single-Emitting-Component White Organic Light-Emitting Devices (WOLEDs)

Wu, Xiaoming; Wang, Li; Hua, Yulin; Wang, Changsheng; Batsanov, Andrei S.; Bryce, Martin R.

Authors

Xiaoming Wu

Li Wang

Yulin Hua

Changsheng Wang

Andrei S. Batsanov

Professor Martin Bryce m.r.bryce@durham.ac.uk
Professor

Abstract

The synthesis is reported of a new molecule consisting of N-phenylcarbazole linked through a butadiyne bridge to 2,5-diphenyl-1,3,4-oxadiazole. The compound shows blue photoluminescence with positive solvatochromism: e.g., λmax 401 nm in cyclohexane, 461 nm in chloroform solution (quantum yield Φf 0.55) and 428 nm in thin film, with a low intensity band extending to ca. 700 nm in films. OLEDs with a device configuration of [ITO/PEDOT:PSS (50 nm)/molecule:PVK:OXD-7 (80 nm)/Bphen (20 nm)/LiF (0.8 nm)/Al (120 nm)] were fabricated. Pure white-light emission with Commission Internationale De L'Eclairage (CIE) coordinates of (0.313, 0.330) at 13 V and good colour stability with a very small offset of coordinates (0.034, 0.033) under biases of 9–15 V has been achieved.

Citation

Wu, X., Wang, L., Hua, Y., Wang, C., Batsanov, A. S., & Bryce, M. R. (2014). A Carbazole-Oxadiazole Diad Molecule for Single-Emitting-Component White Organic Light-Emitting Devices (WOLEDs). Tetrahedron, 70(11), 2015-2019. https://doi.org/10.1016/j.tet.2014.01.073

Journal Article Type	Article
Publication Date	Mar 18, 2014
Deposit Date	Nov 24, 2014
Publicly Available Date	Nov 26, 2014
Journal	Tetrahedron
Print ISSN	0040-4020
Publisher	Elsevier
Peer Reviewed	Peer Reviewed
Volume	70
Issue	11
Pages	2015-2019
DOI	https://doi.org/10.1016/j.tet.2014.01.073
Keywords	Carbazole, Oxadiazole, Fluorescence, Donor–acceptor system, Organic light-emitting device.