Optoelectrochemical properties of the copolymer of 2,5-di(4-methylthiophen-2-yl)-1-(4-nitrophenyl)-1H-pyrrole monomer with 3,4-ethylenedioxythiophene

Date

2008-04-30

Author

AK, Metin
Tanyeli, Cihangir
Akhmedo, Dris M.
Toppare, Levent Kamil

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Copolymer of 2,5-di(4-methylthiophen-2-yl)-1-(4-nitrophenyl)-1H-pyrrole (MTNP) with 3,4-ethylene dioxythiophene (EDOT) was electro-chemically synthesized and characterized via cyclic voltammetry, Fourier Transform Infrared spectroscopy, Scanning Electron Microscopy, conductivity measurements. Spectroelectrochemical investigations showed that resulting copolymer film has distinct electrochromic properties. It has five different colors (dark purple, red, light grey, green, blue). At the neutral state m due to the pi-pi* transition was found to be 500 mn and E-g was calculated as 1.71 eV Double potential step chronoamperometry experiment shows that copolymer film has good stability, fast switching time (1.1 s) and high optical contrast (30%).

Subject Keywords

Materials Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Surfaces and Interfaces, Metals and Alloys

URI

https://hdl.handle.net/11511/39459

Journal

THIN SOLID FILMS

DOI

https://doi.org/10.1016/j.tsf.2008.01.013

Collections

Department of Chemistry, Article

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Citation Formats

M. AK, C. Tanyeli, D. M. Akhmedo, and L. K. Toppare, “Optoelectrochemical properties of the copolymer of 2,5-di(4-methylthiophen-2-yl)-1-(4-nitrophenyl)-1H-pyrrole monomer with 3,4-ethylenedioxythiophene,” THIN SOLID FILMS, pp. 4334–4341, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39459.