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.