Tetra-EDOT substituted 3D electrochromic polymers with lower band gaps

作     者：Jingjing Shi Imran Murtaza Shan Shao Xiaosi Zhu Yang Zhao Mengmeng Zhu Osamu Goto Hong Meng 

作者机构：School of Advanced MaterialsPeking University Shenzhen Graduate School Key Laboratory of Flexible Electronics & Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Department of PhysicsInternational Islamic University 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2017年第60卷第1期

页      面：90-98页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：the Shenzhen Key Laboratory of Organic Optoelectromagnetic Functional Materials of Shenzhen Science and Technology Plan(ZDSYS20140509094114164) the Shenzhen Peacock Program(KQTD2014062714543296) Shenzhen Science and Technology Research Grant(JCYJ20140509093817690) the Nanshan Innovation Agency Grant(KC2015ZDYF0016A) the Guangdong Key Research Project(2014B090914003,2015B090914002) the Guangdong Talents Project,the National Basic Research Program of China(2015CB856505) the National Natural Science Foundation of China(51373075) the Guangdong Academician Workstation(2013B090400016) the Natural Science Foundation of Guangdong Province(2014A030313800) 

主　　题：conjugated 3D polymers electrochromic polythiophene polypyrrole EDOT low band gap electrochemistry 

摘      要：A couple of novel electrochromic materials poly(2,3,4,5-tetrakis(2,3-hydrothieno[3,4-b]dixin-5-yl)-1-methyl-1H-pyrrole)(P(t-EDOT-mPy))and poly(5,5 ,5,5 -(thiophene-2,3,4,5-tetrayl)tetrakis(2,3-dihydrothieno[3,4-b][1,4]dioxine))(P(t-EDOTTh))are electrodeposited via multi-position polymerization of their tetra-EDOT substituted monomers t-EDOT-mPy and t-EDOT-Th,*** with the linear 2D structured poly(thiophene)(E_g=2.2 eV)and poly(2,5-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)thiophene)(E_g=1.7eV),P(t-EDOT-Th)(E_g=1.62eV)has the lowest band ***,we speculate that the band gaps of the two polymers,having 3D structures,are decreased in contrast to non-substituted polymers or bi-EDOT substituted polymers,thiophene and *** results indicated that P(t-EDOT-Th)thin films are more stable and show higher transmittance amid two polymers,which may find their utilization in organic optoelectronics.