TY - JOUR
T1 - Copolymers based on 1,3-bis(carbazol-9-yl)benzene and three 3,4-ethylenedioxythiophene derivatives as potential anodically coloring copolymers in high-contrast electrochromic devices
AU - Kuo, Chung Wen
AU - Wu, Teng Lu
AU - Lin, Yuan Chung
AU - Chang, Jeng-Kuei
AU - Chen, Ho Rei
AU - Wu, Tzi Yi
PY - 2016/10/19
Y1 - 2016/10/19
N2 -
In this study, copolymers based on 1,3-bis(carbazol-9-yl)benzene (BCz) and three 3,4-ethylenedioxythiophene derivatives (3,4-ethylenedioxythiophene (EDOT), 3,4-(2,2-dimethylpropylenedioxy) thiophene (ProDOT-Me
2
), and 3,4-ethylenedithiathiophene (EDTT)) were electrochemically synthesized and their electrochemical and electrochromic properties were characterized. The anodic copolymer P(BCz-co-ProDOT) with BCz/ProDOT-Me
2
= 1/1 feed molar ratio showed high optical contrast (ΔT%) and coloring efficiency (η), measured as 52.5% and 153.5 cm
2
·C
-1
at 748 nm, respectively. Electrochromic devices (ECDs) based on P(BCz-co-EDOT), P(BCz-co-ProDOT), and P(BCz-co-EDTT) as anodic polymer layers, and poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS) as cathodic polymer layer were fabricated. P(BCz-co-ProDOT)/triple-layer PEDOT-PSS ECD showed three different colors (light yellow, yellowish-blue, and dark blue) at different applied potentials. In addition, the highest optical contrast (ΔT%) of P(BCz-co-ProDOT)/triple-layer PEDOT-PSS ECD was found to be 41% at 642 nm and the coloration efficiency was calculated to be 416.5 cm
2
·C
-1
at 642 nm. All ECDs showed satisfactory optical memories and electrochemical cyclic stability.
AB -
In this study, copolymers based on 1,3-bis(carbazol-9-yl)benzene (BCz) and three 3,4-ethylenedioxythiophene derivatives (3,4-ethylenedioxythiophene (EDOT), 3,4-(2,2-dimethylpropylenedioxy) thiophene (ProDOT-Me
2
), and 3,4-ethylenedithiathiophene (EDTT)) were electrochemically synthesized and their electrochemical and electrochromic properties were characterized. The anodic copolymer P(BCz-co-ProDOT) with BCz/ProDOT-Me
2
= 1/1 feed molar ratio showed high optical contrast (ΔT%) and coloring efficiency (η), measured as 52.5% and 153.5 cm
2
·C
-1
at 748 nm, respectively. Electrochromic devices (ECDs) based on P(BCz-co-EDOT), P(BCz-co-ProDOT), and P(BCz-co-EDTT) as anodic polymer layers, and poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT-PSS) as cathodic polymer layer were fabricated. P(BCz-co-ProDOT)/triple-layer PEDOT-PSS ECD showed three different colors (light yellow, yellowish-blue, and dark blue) at different applied potentials. In addition, the highest optical contrast (ΔT%) of P(BCz-co-ProDOT)/triple-layer PEDOT-PSS ECD was found to be 41% at 642 nm and the coloration efficiency was calculated to be 416.5 cm
2
·C
-1
at 642 nm. All ECDs showed satisfactory optical memories and electrochemical cyclic stability.
KW - Coloration efficiency
KW - Conducting polymer
KW - Electrochemical polymerization
KW - Electrochromic device
KW - Optical contrast
KW - Poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid)
UR - http://www.scopus.com/inward/record.url?scp=84994803265&partnerID=8YFLogxK
U2 - 10.3390/polym8100368
DO - 10.3390/polym8100368
M3 - Article
AN - SCOPUS:84994803265
SN - 2073-4360
VL - 8
JO - Polymers
JF - Polymers
IS - 10
M1 - 368
ER -