Kuo Chung-Wen, Chang Jui-Cheng, Huang Yu-Ting, Chang Jeng-Kuei, Lee Li-Ting, Wu Tzi-Yi
Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan.
Bachelor Program in Interdisciplinary Studies, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan.
Materials (Basel). 2019 Apr 16;12(8):1251. doi: 10.3390/ma12081251.
A series of carbazole-based polymers (PdCz, P(dCz2--dTC1), P(dCz2--dTC2), P(dCz1--dTC2), and PdTC) were deposited on indium tin oxide (ITO) conductive electrodes using electrochemical polymerization. The as-prepared P(dCz2--dTC2) displayed a high Δ (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) as the cathodic material. The P(dCz2--dTC2)/PProdot-Me ECD presented remarkable electrochromic behaviors from the bleached to colored states. Moreover, P(dCz2--dTC2)/PProdot-Me ECD displayed a high optical contrast (Δ, 45.8%), short switching time (ca. 0.3 s), high coloration efficiency (528.8 cm C) at 580 nm, and high redox cycling stability.
通过电化学聚合将一系列咔唑基聚合物（PdCz、P(dCz2–dTC1)、P(dCz2–dTC2)、P(dCz1–dTC2)和PdTC）沉积在氧化铟锡（ITO）导电电极上。所制备的P(dCz2–dTC2)在不同氧化还原状态下显示出高Δ（57.0%）以及从黄绿色、绿灰色、灰色到紫灰色的多色行为。使用含dCz和dTC的均聚物和共聚物作为阳极材料，聚（3,4-(2,2-二甲基亚丙基二氧基)噻吩）（PProdot-Me）作为阴极材料，构建了五个有机电致变色器件（ECD）。P(dCz2–dTC2)/PProdot-Me ECD从漂白态到着色态呈现出显著的电致变色行为。此外，P(dCz2–dTC2)/PProdot-Me ECD显示出高光学对比度（Δ，45.8%）、短切换时间（约0.3 s）、在580 nm处的高着色效率（528.8 cm²/C）以及高氧化还原循环稳定性。
