標題: Applications of Copolymers Consisting of 2,6-di(9H-carbazol-9-yl)pyridine and 3,6-di(2-thienyl)carbazole Units as Electrodes in Electrochromic Devices
作者: Kuo, Chung-Wen
Chang, Jui-Cheng
Huang, Yu-Ting
Chang, Jeng-Kuei
Lee, Li-Ting
Wu, Tzi-Yi
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: copolymer;electrochromic material;spectroelectrochemistry;coloration efficiency;electrochromic device;redox stability
公開日期: 2-四月-2019
摘要: A series of carbazole-based polymers (PdCz, P(dCz2-co-dTC1), P(dCz2-co-dTC2), P(dCz1-co-dTC2), and PdTC) were deposited on indium tin oxide (ITO) conductive electrodes using electrochemical polymerization. The as-prepared P(dCz2-co-dTC2) displayed a high T (57.0%) and multichromic behaviors ranging from yellowish green, greenish gray, gray to purplish gray in different redox states. Five organic electrochromic devices (ECDs) were built using dCz- and dTC-containing homopolymers and copolymers as anodic materials, and poly(3,4-(2,2-dimethylpropylenedioxy)thiophene) (PProdot-Me-2) as the cathodic material. The P(dCz2-co-dTC2)/PProdot-Me-2 ECD presented remarkable electrochromic behaviors from the bleached to colored states. Moreover, P(dCz2-co-dTC2)/PProdot-Me-2 ECD displayed a high optical contrast (T, 45.8%), short switching time (ca. 0.3 s), high coloration efficiency (528.8 cm(2) C-1) at 580 nm, and high redox cycling stability.
URI: http://dx.doi.org/10.3390/ma12081251
http://hdl.handle.net/11536/151983
ISSN: 1996-1944
DOI: 10.3390/ma12081251
期刊: MATERIALS
Volume: 12
Issue: 8
起始頁: 0
結束頁: 0
顯示於類別:期刊論文