Syntheses and Photo-electricity Properties of Star-shaped Organic Molecules Containing 1,3,4-Oxadizole and Arylamine Materials

Chem. J. Chinese Universities

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Syntheses and Photo-electricity Properties of Star-shaped Organic Molecules Containing 1,3,4-Oxadizole and Arylamine Materials

XIANG Neng-Jun^1,2*, XU Yong¹, LEUNG Louis M³, GONG Meng-Lian²

1. Research Branch of R&D Center of Hongta Tobacco(Group) Co., Ltd., Yuxi 653100, China;
2. State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China;
3. Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Hong Kong SAR, China

Received:2007-03-06 Revised:1900-01-01 Online:2007-12-10 Published:2007-12-10
Contact: XIANG Neng-Jun

Abstract

Abstract: Two fluorescent star-shaped molecules, based on a N core, containing an hole-transporting arylamine and an electron-transporting 1,3,4-oxadiazole units were synthesized via a facile multi-steps procedure with a high yield. The star-shaped compounds TTPAOPA and TpMOKPAOPA emit blue light with high fluorescence quantum yields in the 0.82—0.95 range which indicate that they are high efficient light-emitting materials. The HOMO values are -5.28 eV and 5.46 eV, respectively. Reversible anodic oxidation results suggest that the compounds are predominantly hole-transporting. All the results indicat that the synthesized compounds are potentially good candidates as bipolar(hole-transporting/electro-transporting)and emitting materials for fabrication of organic light-emitting diodes.

Key words: Organic small molecule, Hole-transporting, Electronic-transporting, Luminescence

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XIANG Neng-Jun^1,2*, XU Yong¹, LEUNG Louis M³, GONG Meng-Lian². Syntheses and Photo-electricity Properties of Star-shaped Organic Molecules Containing 1,3,4-Oxadizole and Arylamine Materials[J]. Chem. J. Chinese Universities, doi: .

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Syntheses and Photo-electricity Properties of Star-shaped Organic Molecules Containing 1,3,4-Oxadizole and Arylamine Materials

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