A Camouflage Material: p- and n-Type Dopable Furan Based Low Band Gap Electrochromic Polymer and Its EDOT Based Copolymer

详细信息    查看全文

• 作者：Emrah Kavak^a ; Cansu N. Us^b ; Ejmer Yavuz^b ; Arif Kivrak^a ; ^{akivrak@yyu.edu.tr" class="auth_mail" title="E-mail the corresponding author} ; Merve İç ; li Ö ; zkut^b ; ^{mozkut@yyu.edu.tr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Electrochromism ; low band gap polymer ; furan ; thiadiazolo[3 ; 4-g]quinoxaline ; Donor-Acceptor-Donor (D-A-D) approach
• 刊名：Electrochimica Acta
• 出版年：2015
• 出版时间：10 November 2015
• 年：2015
• 卷：182
• 期：Complete
• 页码：537-543
• 全文大小：2400 K

文摘

A Donor-Acceptor-Donor (D-A-D) type monomer, 4,9-di(furan-2-yl)-6,7-diphenyl-[1,2,5]thiadiazolo[3,4-g]quinoxaline (1), was synthesized via Stille Coupling reaction and polymerized electrochemically. The obtained polymer (P1) has low band gap (0.85 eV) and showed electrochromic property (pale mustard-colored in neutral state, grey in oxidized state and brown in reduced state). Moreover, copolymerization of 1 was carried out with EDOT for the formation of P(1-co-EDOT) which exhibits higher electrochemical stability than its homopolymer (P1) and have intriguing electrochromic property with a color change from the tunes of brown to the tunes of green. The band gap of copolymer was calculated as 1.1 eV.