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Electrochromic and non-volatile bistable resistive switching behaviour of acid-doped poly(triphenylamine ether)s

Benfu Wang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin, China)
Decai Ren (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin, China)
Qian Zhang (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin, China)
Xuduo Bai (Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University , Harbin, China)
Xiankai Jiang (Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion, College of Heilongjiang Province School of Chemistry and Materials Science, Heilongjiang University , Harbin, China)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 2 May 2017

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Abstract

Purpose

This paper aims to investigate the electrochromic (EC) properties of poly(triphenylamine alkyl ether) and poly(triphenylamine aryl ether) in two different electrolyte solution to study the resistive switching behaviour of acid-doped poly(triphenylamine alkyl ether).

Design/methodology_appach

By Buchwald–Hartwig coupling reaction, two novel poly[N-p-phenoxy-N-[4-[2-(2-methoxyethoxy)ethoxy]ethoxy]triphenylamineandpoly[N,N-bis(4-phenoxy)]triphenylamine were synthesized from 4-phenoxyaniline and two dibromo aromatic compounds, 1,2-bis[β,β′-(p-bromophenoxy)ethoxy]ethane and bis(4-bromophenyl) ether.

Findings

Poly(triphenylamine alkyl ether) displayed excellent EC characteristics, with a coloration change from a colourless neutral state to light blue and red oxidized states, while poly(triphenylamine aryl ether) showed coloration a change from a colourless neutral state to light blue oxidized state in tetrabutylammonium perchlorate electrolyte solution. Moreover, p-toluenesulfonic acid-doped poly(triphenylamine alkyl ether) exhibited a non-volatile bistable resistive switching behaviour with a high high-conductivity/low-conductivity ratio of up to 104, long retention time exceeding 2.5 × 103 s and the switching threshold voltage was also lower than −2V.

Research limitations/implications

In this paper, the non-volatile bistable resistive switching behaviour of acid-dopedpoly(triphenylamine alkyl ether) was in accordance with the molar ratio of 1:1. The effects of different molar ratios remained to be studied.

Practical implications

Poly(triphenylamine ether)s may find optoelectronic applications as new EC and resistive switching materials.

Originality/value

The effects of alkyl and aryl ether structures in the main chain on the EC and resistive switching behaviour of triphenylamine unit have not yet been reported.

Keywords

Acknowledgements

The authors are grateful to the support of the National Natural Science Foundation of China (Grant No. 21372067 and 51373049); Doctoral Fund of Ministry of Education of China (Grant No. 20132301110001 and 20132301120004).

Citation

Wang, B., Ren, D., Zhang, Q., Bai, X. and Jiang, X. (2017), "Electrochromic and non-volatile bistable resistive switching behaviour of acid-doped poly(triphenylamine ether)s", Pigment & Resin Technology, Vol. 46 No. 3, pp. 218-225. https://doi.org/10.1108/PRT-03-2016-0028

Publisher

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Emerald Publishing Limited

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