Electrochromic and spectroelectrochemical properties of novel 4,4¡ä-bipyridilium-TCNQ anion radical complexes

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• 作者：Guoming Wang ; Xiangkai Fu ; Jun Deng ; Xuemei Huang ; Qiang Miao
• 刊名：Chemical Physics Letters
• 出版年：2013
• 出版时间：30 July, 2013
• 年：2013
• 卷：579
• 期：Complete
• 页码：105-110
• 全文大小：1378 K

文摘

Three novel electrochromic materials 7,7,8,8-tetracyanoquinodimethane (TCNQ) anion radical salts with substituted 4,4¡ä-bipyridilium derivatives (monosubstituent-4,4¡ä-bipyridilium) were prepared. The structure of the complexes was characterized by Elemental analyses, Solid IR spectra and UV-vis spectroscopy. The electrochromic behaviors and electrooptical properties of the complexes were investigated by cyclic voltammetry and UV-vis absorption spectra. Electrochromic devices based on monosubstituent 4,4¡ä-bipyridilium-TCNQ anion radical salts (abbreviated as MBTS) were fabricated which exhibited green-magenta color change. Their color reversibility was excellent with high color-change efficiency after 1000 cycles of the transmittance and transmittance change.