Tunable Electrofluorochromic Device from Electrochemically Controlled Complementary Fluorescent Conjugated Polymer Films

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• 作者：Cheng-Po Kuo ; Chiou-Ling Chang ; Chih-Wei Hu ; Ching-Nan Chuang ; Kuo-Chuan Ho ; Man-kit Leung
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2014
• 出版时间：October 22, 2014
• 年：2014
• 卷：6
• 期：20
• 页码：17402-17409
• 全文大小：515K
• ISSN：1944-8252

文摘

The fluorescent behavior of the electrofluorochromic devices (Type I) of greenish-yellow emitting P1 and blue emitting P2 can be reversibly switched between the nonfluorescent (oxidized) state and the fluorescent (neutral) state with a superb on/off ratio of 23.8 and 21.9, respectively. Moreover, a tunable electrofluorochromic device (Type II) based on two P1 and P2 polymeric layers that are coated individually on two independent ITO electrodes shows switchable blue-white-(greenish-yellow) multifluorescence states.

Keywords:

triphenylamine; electrofluorochromic devices; cyclic urea; fluorene; conjugated polymers; copolymerization; electrochemistry