Back to Search Start Over

Efficient Pyrazolo[5,4-f]quinoxaline Functionalized Os(II) Based Emitter with an Electroluminescence Peak Maximum at 811 nm.

Authors :
Zhu ZL
Wang SF
Fu LW
Tan JH
Cao C
Yuan Y
Yiu SM
Zhang YX
Chi Y
Lee CS
Source :
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2022 Jan 19; Vol. 28 (4), pp. e202103202. Date of Electronic Publication: 2021 Dec 07.
Publication Year :
2022

Abstract

Upon fusing the pyrazinyl pyrazole entity in giving pyrazolo[3,4-f]quinoxaline chelate, the corresponding Os(II) based NIR emitter exhibited "invisible" and efficient electroluminescence with a peak maximum at 811 nm. A maximum external quantum efficiency of 0.97 % and a suppressed efficiency roll-off till a current density of 300 mA cm <superscript>-2</superscript> was also exhibited.<br /> (© 2021 Wiley-VCH GmbH.)

Details

Language :
English
ISSN :
1521-3765
Volume :
28
Issue :
4
Database :
MEDLINE
Journal :
Chemistry (Weinheim an der Bergstrasse, Germany)
Publication Type :
Academic Journal
Accession number :
34811829
Full Text :
https://doi.org/10.1002/chem.202103202