A fast switching, low band gap, p- and n-dopable, donor-acceptor type polymer

Date

2008-04-01

Author

Günbaş, Emrullah Görkem
Akhmedov, Idris Mecidoglu
Tanyeli, Cihangir
Önal, Ahmet Muhtar
Toppare, Levent Kamil

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

201
views

0
downloads

A new electrochromic polymer, poly(2,3-diplienyl-5,7-bis(3,4-ethylenedioxy-2-thienyl)thieno[3,4-b]pyrazine) (PGS) is electrochemically synthesized and its electrochromic properties are reported. PGS showed well defined electrochemical characteristics with a relatively low oxidation potential of 0. 18 V vs Ag/Ag+. Polymer also exhibited a definite redox couple at applied cathodic potentials, indicating n-doping characteristic of the polymer. Spectroelectrochemistry and previously unattempted technique, ESR data was utilized to confirm the existence of dual type pi-pi* transitions centered at 522 nm and 1062 nm. The polymer exhibits multi-color electrochromism where three distinct colors are achievable by varying the redox state of the polymer between saturated red-purple color, blue and colorless-gray in neutral, n- and p-doped states, respectively. Copolymerization as a facile method to tune the electrochromic properties of the material was also realized in the presence of 2,2'-bis(3,4-ethylenedioxythiophene) (BiEDOT). Both polymers exhibit very short switching time (0.4 s) and express more than 45% change in the transmittance in the near-IR region, which could make these polymers useful in applications in NIR electrochromic devices.

Subject Keywords

Analytical Chemistry, Electrochemistry, General Chemical Engineering

URI

https://hdl.handle.net/11511/48888

Journal

JOURNAL OF ELECTROANALYTICAL CHEMISTRY

DOI

https://doi.org/10.1016/j.jelechem.2007.11.035

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

A ferrocene functionalized multichromic p and n dopable donor-acceptor-donor type conjugated polymer Ozdemir, Serife; BALAN, Abidin; BARAN, Derya; Doğan, Özdemir; Toppare, Levent Kamil (Elsevier BV, 2010-10-01) Ferrocene substituted donor-acceptor-donor type polymer; poly(5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2-(naphthalen-2-yl)-3-ferrocenyl-4a,8a-dihydroquinoxaline) (PDEFNQ) was synthesized and its electrochromic properties were investigated. Cyclic voltammetry and spectroelectrochemistry studies for PDEFNQ showed that it is a multichromic green to transmissive polymer with high tendency to be both p and n doped. PDEFNQ is foreseen as a promising candidate for various applications.
Dual type complementary colored polymer electrochromic devices utilized by 3-ester substituted thiophenes CAMURLU, P; Çırpan, Ali; Toppare, Levent Kamil (Elsevier BV, 2004-10-15) Dual type polymer electrochromic devices (ECDs) based on potentiodynamically coated films of octanoic acid 2-thiophen-3-yl-ethyl ester (OTE), decanedioic acid bis-(2-thiophen-3-yl-ethyl) ester (DATE) and ethylene dioxythiophene (EDOT) were constructed. The former two function as anodically coloring layers and the latter as a cathodically coloring layer in between tetrabutylammonium tetrafluoroborate (TBAFB) poly(methylmethacrylate) gel media. The spectroelectrochemistry, switching ability and stability of t...
A Diverse-Stimuli Responsive Chemiluminescent Probe with Luminol Scaffold and Its Electropolymerization Asil Alptekin, Demet; Algi, Fatih; Önal, Ahmet Muhtar (Wiley, 2010-10-01) A diverse-stimuli responsive chemiluminescent system, SNS-Lum, and its electropolymerization to give PSNS-Lum, which is the first example of conjugated polymers with pendant luminol arms inducing chemiluminescence in the presence of super oxide radical anion under neutral conditions, are highlighted.
Electrochemical polymerization of a new low-voltage oxidized thienylenepyrrole-derivative and its electrochromic device application Carbas, Buket Bezgin; KIVRAK, Arif; TEKE, Ecem; Zora, Metin; Önal, Ahmet Muhtar (Elsevier BV, 2014-09-01) Synthesis of a new monomer, 2,5-bis-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1-phenyl-1H-pyrrole (ENE), from pyrrole, iodobenzene and 3,4-ethylenedioxythiophene (EDOT), and its electropolymerization are reported. ENE was oxidized at a low oxidation potential (0.45 V vs. Ag/AgCl) and successfully electropolymerized in acetonitrile containing 0.1 M NaClO4 and LiClO4 electrolyte mixture. The resulting polymer, P(ENE), revealed five distinctive colors upon doping, which indicated that the polymer is multichro...
Electrochemical and optical properties of novel terthienyl based azobenzene, coumarine and fluorescein containing polymers: Multicolored electrochromic polymers Yigit, Deniz; Udum, Yasemin Arslan; GÜLLÜ, Mustafa; Toppare, Levent Kamil (Elsevier BV, 2014-01-01) Three electroactive terthienyl based monomers, namely 1-phenyl-2-[4-(2,2':5',2 ''-terthien-3'-ylmethoxy)phenyl]diazene (TTAz), 4-(2,2':5',2 ''-terthien-3'-ylmethoxy)-2H-chromen-2-one (TTCo) and methyl 2-[3-oxo-6-(2,2':5',2 ''-terthien-3'-ylmethoxy)-3H-xanthen-9-yl] benzoate (TTFlo), were synthesized with good yields and their conducting polymers were electrochemically prepared on ITO electrode surfaces. The effect of chromophore type on electrochemical and optical properties of the polymers was investigated...

Citation Formats

E. G. Günbaş, I. M. Akhmedov, C. Tanyeli, A. M. Önal, and L. K. Toppare, “A fast switching, low band gap, p- and n-dopable, donor-acceptor type polymer,” JOURNAL OF ELECTROANALYTICAL CHEMISTRY, pp. 75–83, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48888.