title: Tunable electrofluorochromic device from electrochemically controlled complementary fluorescent conjugated polymer films.
abstract: 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.
authors.affiliation: Material and Chemical Research Laboratories, Industrial Technology Research Institute , Hsinchu 300, Hsinchu 31040, Taiwan, R.O.C.
authors.forename: Cheng-Po
authors.initials: CP
authors.lastname: Kuo
authors.forename: Chiou-Ling
authors.initials: CL
authors.lastname: Chang
authors.forename: Chih-Wei
authors.initials: CW
authors.lastname: Hu
authors.forename: Ching-Nan
authors.initials: CN
authors.lastname: Chuang
authors.forename: Kuo-Chuan
authors.initials: KC
authors.lastname: Ho
authors.forename: Man-kit
authors.initials: MK
authors.lastname: Leung
keywords: conjugated polymers; copolymerization; cyclic urea; electrochemistry; electrofluorochromic devices; fluorene; triphenylamine