Issue 17, 2014

High-performance two-photon absorption luminophores: large action cross sections, free from fluorescence quenching and tunable emission of efficient non-doped organic light-emitting diodes

Abstract

Two novel quadrupolar D–π–D type two-photon absorption (2PA) luminophores PA2F4H8E8 and AnA2F4H8E8 were synthesized by Wittig–Horner reaction in high yields. By using distyrylbenzene as the π-bridge center, PA2F4H8E8 shows two-photon absorption aggregation-induced emission enhancement (2PA-AIEE) and exhibits exceptionally large 2PA and 2PA action cross-sections up to ∼6300 GM and ∼1400 GM at 800 nm in THF, respectively. A non-doped electroluminescent (EL) device of PA2F4H8E8 displays good performance with an extremely low turn-on voltage of 2.6 V and a high brightness of 9837 cd m−2.

Graphical abstract: High-performance two-photon absorption luminophores: large action cross sections, free from fluorescence quenching and tunable emission of efficient non-doped organic light-emitting diodes

Supplementary files

Article information

Article type
Paper
Submitted
17 Oct 2013
Accepted
16 Jan 2014
First published
22 Jan 2014

J. Mater. Chem. C, 2014,2, 3416-3428

High-performance two-photon absorption luminophores: large action cross sections, free from fluorescence quenching and tunable emission of efficient non-doped organic light-emitting diodes

B. Xu, J. He, Y. Liu, B. Xu, Q. Zhu, M. Xie, Z. Zheng, Z. Chi, W. Tian, C. Jin, F. Zhao, Y. Zhang and J. Xu, J. Mater. Chem. C, 2014, 2, 3416 DOI: 10.1039/C3TC32052A

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