[1, 2, 5]Chalcogenodiazolo[3, 4-c]pyridine and selenophene based donor–acceptor–donor electrochromic polymers electrosynthesized from high fluorescent precursors. (17th August 2016)

• Record Type: Journal Article
• Authors: Lu, Baoyang; Ming, Shouli; Lin, Kaiwen; Zhen, Shijie; Liu, Hongtao; Gu, Hua; Chen, Shuai; Li, Yuzhen; Zhu, Zhengyou; Xu, Jingkun
• Is Part Of: New journal of chemistry. Volume 40:Number 10(2016:Oct.)
• Page Start: 8316
• Page End: 8323
• Publication Date: 2016-08-17
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c5nj03432a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Two selenophene precursors, exhibiting yellow and red emission characteristics, were electropolymerized at low potentials to form the near-infrared electrochromic films. Abstract : Conjugated polymers containing selenophene have received attention due to their unique properties and promising application in organic electronics. Herein, to further improve the optoelectronic properties, two typical selenophenes containing [1, 2, 5]thiadiazolo[3, 4- c ]pyridine (PT)/[1, 2, 5]selenadiazolo[3, 4- c ]pyridine (PS) were synthesized by a donor–acceptor strategy and electropolymerized to form the donor–acceptor–donor polymers. The two precursors exhibited yellow and red emission characteristics with high quantum yields (∼0.48); the value was far greater than those for previously reported selenophenes. Furthermore, electrochromic studies demonstrated that the obtained polymers have superior coloration efficiencies (168 cm −2 C −1 ) than thiophene based analogues and fast response times (1.6 s).