Construction of deep-blue AIE luminogens with TPE and oxadiazole units

In this paper, two AIE-active luminogens （Oxa-pTPE and Oxa-mTPE） constructed from tetraphenylethene and oxadiazole units were successfully synthesized and their thermal, optical and electronic properties were investigated. By linking TPE to the oxadiazole core through meta-or para-position, the intr...

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Bibliographic Details
Published in:Science China. Chemistry 2013-09, Vol.56 (9), p.1213-1220
Main Authors: Huang, Jing, Chen, PengYu, Yang, Xiao, Tang, RunLi, Wang, Lei, Qin, JinQui, Li, Zhen
Format: Article
Language:English
Subjects:
Chemical compounds
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Conjugation
OLED
Optical properties
Oxadiazoles
TPE
分子设计
单元
恶二唑
深蓝色
热塑性弹性体
电子特性
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Summary:In this paper, two AIE-active luminogens （Oxa-pTPE and Oxa-mTPE） constructed from tetraphenylethene and oxadiazole units were successfully synthesized and their thermal, optical and electronic properties were investigated. By linking TPE to the oxadiazole core through meta-or para-position, the intramolecular conjugation is effectively controlled. Thanks to the intelligent molecular design and specific AIE feature, when fabricated as emissive layers in non-doped OLEDs, they exhibit blue or deep-blue emission with CIE coordinates of （0.17, 0.23） and （0.15, 0.12）, and good efficiencies with ηC, max and ηP, max up to 1.52 cd A-1 and 0.84 Im W-1 , shedding some light on the construction of deep-blue AIE fluorophores.
ISSN:1674-7291
1869-1870
DOI:10.1007/s11426-013-4925-6