Record number :
1675948
Title of article :
Star-shaped conjugated systems derived from thienyl-derivatized poly(triphenylamine)s as active materials for electrochromic devices
Author/Authors :
Cheng، نويسنده , , Xinfeng and Zhao، نويسنده , , Jinsheng and Cui، نويسنده , , Chuansheng and Fu، نويسنده , , Yunzhi and Zhang، نويسنده , , Xianxi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
7
From page :
24
To page :
30
Abstract :
A star-shaped molecule, tris[4-(2-thienyl)phenyl]amine, which contains triphenylamine as core and thiophene as arms, was successfully synthesized via Suzuki coupling reaction. Poly(tris[4-(2-thienyl)phenyl]amine) (PTTPA) was electrochemically synthesized and characterized. The resulting polymer film exhibited four various colors under different potentials. Moreover, the PTTPA film showed high optical contrast (38% at 430 nm, 29% at 560 nm, and 53% at 710 nm) and satisfactory response time (2.57 s at 430 nm, 0.76 s at 560 nm, and 2.10 s at 710 nm). An electrochromic device (ECD) based on PTTPA and poly(3,4-ethylenedioxythiophene) (PEDOT) was also constructed and characterized. This ECD was found to have good switching times, reasonable contrast, and satisfactory optical memories and redox stability.
Keywords :
Spectroelectrochemistry , Electrochromic device , conducting polymer , Multichromism
Journal title :
Journal of Electroanalytical Chemistry
Journal title :
Journal of Electroanalytical Chemistry
Serial Year :
2012
Link To Document :
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