Bridged-triarylamine starburst oligomers as hole transporting materials for electroluminescent devices
Webster, Richard David
Date of Issue2012
School of Physical and Mathematical Sciences
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.
Journal of materials chemistry
© 2012 Royal Society of Chemistry.