TY - JOUR
T1 - Applications of copolymers consisting of 2,6-di(9H-carbazol-9-yl)pyridine and 3,6-di(2-thienyl)carbazole units as electrodes in electrochromic devices
AU - Kuo, Chung Wen
AU - Chang, Jui Cheng
AU - Huang, Yu Ting
AU - Chang, Jeng-Kuei
AU - Lee, Li Ting
AU - Wu, Tzi Yi
PY - 2019/1/1
Y1 - 2019/1/1
N2 - A series of carbazole-based polymers (PdCz, P(dCz2-co-dTC1), P(dCz2-co-dTC2), P(dCz1-co-dTC2), and PdTC) were deposited on indium tin oxide (ITO) conductive electrodes using electrochemical polymerization. The as-prepared P(dCz2-co-dTC2) displayed a high ΔT (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 andcopolymers as anodicmaterials, andpoly(3,4-(2,2-dimethylpropylenedioxy)thiophene) (PProdot-Me2) as the cathodic material. The P(dCz2-co-dTC2)/PProdot-Me2 ECD presented remarkable electrochromic behaviors from the bleached to colored states. Moreover, P(dCz2-co-dTC2)/PProdot-Me2 ECD displayed a high optical contrast (ΔT, 45.8%), short switching time (ca. 0.3 s), high coloration efficiency (528.8 cm2 C-1) at 580 nm, and high redox cycling stability.
AB - A series of carbazole-based polymers (PdCz, P(dCz2-co-dTC1), P(dCz2-co-dTC2), P(dCz1-co-dTC2), and PdTC) were deposited on indium tin oxide (ITO) conductive electrodes using electrochemical polymerization. The as-prepared P(dCz2-co-dTC2) displayed a high ΔT (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 andcopolymers as anodicmaterials, andpoly(3,4-(2,2-dimethylpropylenedioxy)thiophene) (PProdot-Me2) as the cathodic material. The P(dCz2-co-dTC2)/PProdot-Me2 ECD presented remarkable electrochromic behaviors from the bleached to colored states. Moreover, P(dCz2-co-dTC2)/PProdot-Me2 ECD displayed a high optical contrast (ΔT, 45.8%), short switching time (ca. 0.3 s), high coloration efficiency (528.8 cm2 C-1) at 580 nm, and high redox cycling stability.
KW - Coloration efficiency
KW - Copolymer
KW - Electrochromic device
KW - Electrochromic material
KW - Redox stability
KW - Spectroelectrochemistry
UR - http://www.scopus.com/inward/record.url?scp=85065636371&partnerID=8YFLogxK
U2 - 10.3390/ma12081251
DO - 10.3390/ma12081251
M3 - Article
AN - SCOPUS:85065636371
SN - 1996-1944
VL - 12
JO - Materials
JF - Materials
IS - 8
M1 - 1251
ER -