Issue 30, 2012
From the journal:

Journal of Materials Chemistry

Bridged-triarylamine starburst oligomers as hole transporting materials for electroluminescent devices†

Zhen Fang,‡a   Vijila Chellappan,b   Richard D. Webster,c   Lin Ke,b   Tianfu Zhang,d   Bin Liud  and  Yee-Hing Lai*a  

* Corresponding authors

a Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
E-mail: chmlaiyh@nus.edu.sg
Fax: +65 6779 1691
Tel: +65 6516 2914

b Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore

c Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore

d Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore

Abstract

Two bridged-triphenylamine starburst molecules were designed and synthesized. Their electrochemical properties were studied in detail using cyclic voltammetry (CV) and square wave voltammetry (SWV) methods. The bridged molecular structure stabilizes the oxidative state and decreases the oxidation potentials, resulting in an increased HOMO energy level. Double-layer sandwich electroluminescence devices were fabricated. The bridged triphenylamine starburst 4 has shown significantly enhanced performance compared with the triphenylamine analog 3 and its ethenyl-linked derivative 6.

Graphical abstract: Bridged-triarylamine starburst oligomers as hole transporting materials for electroluminescent devices

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Article information

DOI
https://doi.org/10.1039/C2JM32840B
Article type
Paper
Submitted
07 May 2012
Accepted
06 Jun 2012
First published
07 Jun 2012

J. Mater. Chem., 2012,22, 15397-15404

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Bridged-triarylamine starburst oligomers as hole transporting materials for electroluminescent devices

Z. Fang, V. Chellappan, R. D. Webster, L. Ke, T. Zhang, B. Liu and Y. Lai, J. Mater. Chem., 2012, 22, 15397 DOI: 10.1039/C2JM32840B

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