Band Gap, Molecular Energy and Electrochromic Characterization of Electrosynthesized Hydroxymethyl 3,4-Ethylenedioxythiophene

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• 作者：Thien Thanh Co ; Tri Quoc Tran ; Hai Viet Le…
• 关键词：Conjugated polymer ; polythiophene derivative ; electrochromic ; electrochemical polymerization ; spectroelectrochemistry
• 刊名：Journal of Electronic Materials
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：46
• 期：3
• 页码：1669-1673
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials; Electronics and Microelectronics, Instrumentation; Solid State Physics;
• 出版者：Springer US
• ISSN：1543-186X
• 卷排序：46

文摘

Hydroxymethyl functionalized 3,4-ethylenedioxythiophene (EDOT-MeOH) monomer was synthesized according to a previously reported procedure. Electropolymerization of EDOT-MeOH was performed in acetonitrile (ACN) containing tetrabutylammonium perchlorate (Bu₄NClO₄) as the supporting electrolyte by chronoamperometry on platinum (Pt) and fluorine-doped tin oxide-coated glass substrates. The resulting conjugated polymer (PEDOT-MeOH) was characterized by cyclic voltammetry and UV–Vis spectrophotometer techniques. The polymer showed a deep HOMO energy level of −5.31 eV with a very low band gap of 1.54 eV. Spectroelectrochemical study revealed that the PEDOT-MeOH has interesting electrochromic properties.