Synthesis and Luminescent Properties of a Novel Green-Emitting Iridium Complex

Synthesis and Luminescent Properties of a Novel Green-Emitting Iridium Complex

Year:    2014

Author:    Li-Ying Zhang, Jian-Hua Fu, Zhi-Qin Fan, Gang Lv, Xiu-Ying Liu

Journal of Atomic and Molecular Sciences, Vol. 5 (2014), Iss. 3 : pp. 247–253

Abstract

A novel cyclometalated iridium complex bis[(4-(2-(4-Diphenylamino-phen yl)-benzoinidazol-1-ylmethyl)-phenyl)-diphenyl-amine]iridium(acetylacetonate) Ir(DBPA)$_2$(acac) is designed and synthesized, and the thermo-stability and photo-physical properties of iridium complex Ir(DBPA)$_2$(acac) are researched in detail. The complex is functionalized by a bulky non-planarity substituent, thus the phosphorescent concentration quenching in solid state is substantially suppressed, and Ir(DBPA)$_2$(acac) exhibits bright green-emitting in both solution and solid. The maximum emission peak inr pure solid is about 516 nm, which is slightly blue-shifted in comparison with that in solution. Moreover, the complex Ir(DBPA)$_2$(acac) exhibits high photoluminescent efficiency and short excited lifetime, indicating it has potential application in fabricating nodoped electrophosphorescence device.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jams.040914.061214a

Journal of Atomic and Molecular Sciences, Vol. 5 (2014), Iss. 3 : pp. 247–253

Published online:    2014-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    7

Keywords:    molecule design iridium complex photoluminescence.

Author Details

Li-Ying Zhang

Jian-Hua Fu

Zhi-Qin Fan

Gang Lv

Xiu-Ying Liu