Issue 86, 2017

A new molecular design based on hybridized local and charge transfer fluorescence for highly efficient (>6%) deep-blue organic light emitting diodes

Abstract

A deep-blue emitter was developed by modifying carbazole nuclear positions C2 & C7 with a triphenylamine donor and C3 & C6 with a cyano acceptor. The molecular design features cross-conjugated localized and charge transfer chromophores which results in a hybridized local charge transfer (HLCT) excited state. An organic light emitting diode (OLED) using this material exhibited high external quantum efficiency (6.5%) with excellent color saturation (CIEy ∼ 0.06) and small full-width at half maximum (48 nm).

Graphical abstract: A new molecular design based on hybridized local and charge transfer fluorescence for highly efficient (>6%) deep-blue organic light emitting diodes

Supplementary files

Article information

Article type
Communication
Submitted
13 Sep 2017
Accepted
05 Oct 2017
First published
05 Oct 2017

Chem. Commun., 2017,53, 11802-11805

A new molecular design based on hybridized local and charge transfer fluorescence for highly efficient (>6%) deep-blue organic light emitting diodes

R. Kumar Konidena, K. R. Justin Thomas, D. Kumar Dubey, S. Sahoo and J. Jou, Chem. Commun., 2017, 53, 11802 DOI: 10.1039/C7CC07139F

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