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

Authors :
Zhu, Ze‐Lin
Wang, Sheng‐Fu
Fu, Li‐Wen
Tan, Ji‐Hua
Cao, Chen
Yuan, Yi
Yiu, Shek‐Man
Zhang, Ye‐Xin
Chi, Yun
Lee, Chun‐Sing
Source :
Chemistry - A European Journal; 1/19/2022, Vol. 28 Issue 4, p1-5, 5p
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−2 was also exhibited. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09476539
Volume :
28
Issue :
4
Database :
Complementary Index
Journal :
Chemistry - A European Journal
Publication Type :
Academic Journal
Accession number :
154759161
Full Text :
https://doi.org/10.1002/chem.202103202