Synthesis and Characterization of Thiophene and Thieno[3,2-b]thiophene Containing Conjugated Polymers

Date

2015-01-01

Author

Rustamh, Elvin
Goker, Seza
UDUM, YASEMİN
Udum, Yasemin Arslan
Toppare, Levent Kamil

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Herein, we report the synthesis of two donor-acceptor-donor polymers (P1 and P2) based on thiophene (M1) and thieno [3,2-b]thiophene (M2) as the donor and 2,5-bis(dodecyloxy)benzene as the acceptor unit. The effects of different donor units on the polymers' electrochemical and optical properties were examined by cyclic voltammetry and spectroelectrochemical analysis. Introducing thieno[3,2-b]thiophene unit as the donor unit enhances pi-stacking and consequently lowering the bandgap of the resulting polymer. The electronic band gaps, defined as the onset of the pi-pi transition, were found to be 2.0 eV for P1 and 1.7 eV for P2. Both P1 and P2 films revealed multi-colored electrochromism. A dual-type complementary colored electrochromic device (ECD) using P2/PEDOT in sandwich configuration was constructed. Spectroelectrochemistry, switching ability and open circuit memory of the ECD were investigated. (C) 2015 The Electrochemical Society. All rights reserved.

Subject Keywords

Renewable Energy, Sustainability and the Environment, Electrochemistry, Materials Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Condensed Matter Physics

URI

https://hdl.handle.net/11511/34583

Journal

JOURNAL OF THE ELECTROCHEMICAL SOCIETY

DOI

https://doi.org/10.1149/2.0751509jes

Collections

Department of Chemistry, Article

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Citation Formats

E. Rustamh, S. Goker, Y. UDUM, Y. A. Udum, and L. K. Toppare, “Synthesis and Characterization of Thiophene and Thieno[3,2-b]thiophene Containing Conjugated Polymers,” JOURNAL OF THE ELECTROCHEMICAL SOCIETY, pp. 0–0, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34583.