Synthesis, electrochemical and electrochromic properties of novel 2,4,6-Tri(pyridine-4-yl) pyridilium derivatives

被引：19

作者：

Wang, Guoming ^{[1
]}

Fu, Xiangkai ^{[1
]}

He, Lihua ^{[1
]}

Huang, Xuemei ^{[1
]}

Miao, Qiang ^{[1
]}

机构：

[1] Southwest Univ, Res Inst Appl Chem, Key Lab Appl Chem Chongqing Municipal, Coll Chem & Chem Engn, Chongqing 400715, Peoples R China

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 02期

关键词：

Multi-electrochromic materials; 2,4,6-Tri(pyridine-4-yl) pyridilium derivatives; Cyclic voltammetry; Electrochromic devices; Multicolor; TUNGSTEN-OXIDE; VIOLOGEN; WINDOWS; FLUORESCENCE; MACHINES; PAPER;

D O I：

10.1016/j.orgel.2013.12.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Four star-shaped like fused heterocyclic compounds multi-electrochromic materials 2,4,6-Tri(pyridine-4-yl) pyridilium derivatives (TPPDs) were successfully synthesized and characterized by NMR, Solid IR spectra, APCI-MS, and UV-vis spectroscopy. The electrochemical properties, electrochromic behavior, electro-optical properties, and electrochromic mechanism were investigated by thermogravimetric analysis, cyclic voltammetry and UV-vis absorption spectra. Electrochromic devices based on these compounds were fabricated with an active area of 3 cm x 4 cm and their electrochromic performances were further studied. It was found the ECDs presented a stable as well as multicolor electrochromic change from colorless to blue, then violet-blue and finally black-blue between 0 V and +4.0 V. In addition, the prepared electrochromic materials had high coloration efficiency, low switching time, and nice redox stability. This type of multi-electrochromic materials would thus be promising candidates for applications in electrochromic devices. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：622 / 630

页数：9