Electrosynthesis of copolymers based on 1,3,5-tris(N-Carbazolyl)benzene and 2,2'-bithiophene and their applications in electrochromic devices

20Citations
Citations of this article
8Readers
Mendeley users who have this article in their library.

Abstract

Poly(1,3,5-tris(N-carbazolyl)benzene) (PtnCz) and three copolymers based on 1,3,5-tris(N-carbazolyl)benzene (tnCz) and 2,2'-bithiophene (bTp) were electrochemically synthesized. The anodic P(tnCz1-bTp2) film with a tnCz/bTp feed molar ratio of 1/2 showed four colors (light orange at 0.0 V, yellowish-orange at 0.7 V, yellowish-green at 0.8 V, and blue at 1.1 V) from the neutral state to oxidized states. The optical contrast (ΔT%) and coloration efficiency (η) of the P(tnCz1-bTp2) film were measured as 48% and 112 cm2C-1, respectively, at 696 nm. Electrochromic devices (ECDs) based on PtnCz, P(tnCz1-bTp1), P(tnCz1-bTp2), P(tnCz1-bTp4), and PbTp films as anodic polymer layers and poly(3,4-dihydro-3,3-dimethyl-2H-thieno[3,4-b-1,4]dioxepin) (PProDOT-Me2) as cathodic polymer layers were assembled. P(tnCz1-bTp2)/PProDOT-Me2 ECD showed three various colors (saffron yellow, yellowish-blue, and dark blue) at potentials ranging from -0.3 to 1.5 V. In addition, P(tnCz1-bTp2)/PProDOT-Me2 ECD showed a high ΔT% value (40% at 630 nm) and a high coloration efficiency (519 cm2C-1 at 630 nm).

Cite

CITATION STYLE

APA

Kuo, C. W., & Lee, P. Y. (2017). Electrosynthesis of copolymers based on 1,3,5-tris(N-Carbazolyl)benzene and 2,2’-bithiophene and their applications in electrochromic devices. Polymers, 9(10). https://doi.org/10.3390/polym9100518

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free