Room temperature tri-alkynyl benzene based discotic nematic mesophase enabling high-efficiency deep blue OLEDs

•This work presents the unique molecular concept to realize a stable discotic nematic phase at room temperature, which is scarce in number.•This rationale engineering in design proved advantageous, resulting in room temperature mesogens representing a promising lead as a pure deep-blue emissive comp...

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Bibliographic Details
Published in:Journal of molecular liquids 2023-11, Vol.390, p.122984, Article 122984
Main Authors: Dhingra, Shallu, Chen, Feng-Rong, Siddiqui, Iram, Gupta, Santosh Prasad, Wang, Ching-Wu, Jou, Jwo-Huei, Pal, Santanu Kumar
Format: Article
Language:English
Subjects:
Blue emitters
Discotic liquid crystals
External quantum efficiency
OLEDs
X-ray diffraction
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Summary:•This work presents the unique molecular concept to realize a stable discotic nematic phase at room temperature, which is scarce in number.•This rationale engineering in design proved advantageous, resulting in room temperature mesogens representing a promising lead as a pure deep-blue emissive component for OLEDs.•On stimulating the compounds electrically as a solid state emitter in organic light-emitting diodes, they showed emission in the deep blue (CIEy 
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2023.122984