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

Ze-Lin ZhuSheng-Fu WangLi-Wen FuJi-Hua TanChen CaoYi YuanShek-Man YiuYe-Xin ZhangYun ChiChun-Sing Lee

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2021)

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.

Keyphrases

light emitting
photodynamic therapy
molecular dynamics
quantum dots
mass spectrometry
fluorescent probe
liquid chromatography