Issue 2, 2015

A study of two thermostable NLO chromophores with different π-electron bridges using fluorene as the donor

Abstract

Two chromophores C1 and C2 based on a fluorene electron donor with different π-electron bridges and the same electron acceptor have been synthesized and systematically characterized using NMR, MS and UV-vis absorption spectra. The energy gap between the ground state and the excited state and molecular nonlinearity were studied using UV-vis absorption spectroscopy, Density Functional Theory calculations and cyclic voltammetry measurements. The different properties between C1 and C2 were systematically compared. The results showed that C2 had a better performance than C1. The electrooptic coefficient of a poled film containing 25 wt% of C2 doped in amorphous polycarbonate afforded a value of 40 pm V−1 at 1310 nm. In addition, the excellent thermostability of C2 made itself a favourable candidate for practical application.

Graphical abstract: A study of two thermostable NLO chromophores with different π-electron bridges using fluorene as the donor

Supplementary files

Article information

Article type
Paper
Submitted
25 Sep 2014
Accepted
13 Nov 2014
First published
13 Nov 2014

New J. Chem., 2015,39, 1038-1044

A study of two thermostable NLO chromophores with different π-electron bridges using fluorene as the donor

H. Wang, F. Liu, Y. Yang, M. Zhang, C. Peng, S. Bo, X. Liu, L. Qiu and Z. Zhen, New J. Chem., 2015, 39, 1038 DOI: 10.1039/C4NJ01653J

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