ELECTROCHROMIC FILMS OF VINYLCARBAZOLE DERIVATIVES

1993-03-22
GEISSLER, U
HALLENSLEBEN, ML
Toppare, Levent Kamil
Several vinylcarbazole derivatives were electrochemically polymerized into electrochromic films with electrical conductivities in the range of 10(-4) to 10(-7) S/cm. The characteristic white/green color change upon doping was due to bicarbazolyl groups. The cyclic voltammograms of the monomers revealed small differences due to the various positions of the vinyl group on the ring.
SYNTHETIC METALS

Suggestions

POLY(3-PHENYL AZOPYRROLE)S - A NEW CLASS OF CONDUCTING POLYMERS IN THE POLY(PYRROLE) SERIES
VOIGT, M; HALLENSLEBEN, ML; Toppare, Levent Kamil (Elsevier BV, 1993-03-22)
Several monosubstituted 3-arylazopyrrole derivatives were synthesized for the first time. The oxidation potentials were correlated to the Hammett constants of the substituents. Cyclic voltammetry studies revealed several interesting, features concerning the new compounds. Electrochemical homopolymerizations as well as copolymerization with pyrrole were performed.
Temperature-Dependent Electrical Characteristics of Au/Si3N4/4H n-SiC MIS Diode
Yigiterol, F.; Güllü, Hasan Hüseyin; Bayraklı, Özge; YILDIZ, DİLBER ESRA (Springer Science and Business Media LLC, 2018-05-01)
Electrical characteristics of the Au/Si3N4/4H n-SiC metal–insulator-semiconductor (MIS) diode were investigated under the temperature, T, interval of 160–400 K using current–voltage (I–V), capacitance–voltage (C−V) and conductance–voltage (G/ω−V) measurements. Firstly, the Schottky diode parameters as zero-bias barrier height (ΦB0) and ideality factor (n) were calculated according to the thermionic emission (TE) from forward bias I–V analysis in the whole working T. Experimental results showed that the valu...
Immobilization of urease in conducting thiophene-capped poly(methyl methacrylate)/pyrrole matrices
Alkan, S; Toppare, Levent Kamil; Bakir, U; Yagci, Y (Elsevier BV, 2001-08-22)
Urease was immobilized in conducting polypyrrole and block copolymers of thiophene-capped poly(methyl methacrylate) matrices by electropolymerization. Immobilization of the enzyme was achieved by application of 1.0 V constant potential in a solution of 0.02 M pyrrole, 2 mg/ml urease, 0.5 mg/ml supporting electrolyte. The optimum immobilization conditions, electrolysis time, electrolysis medium, enzyme concentration during electrolysis, type of supporting electrolyte were determined. The kinetic behaviors of...
Electrochemical preparation and characterization of carbon fiber reinforced poly (dimethyl siloxane)/polythiophene composites: electrical, thermal and mechanical properties
Sankir, M; Kucukyavuz, S; Kucukyavuz, Z (Elsevier BV, 2002-05-10)
A series of polydimethylsiloxane (PDMS)/polythiophene (Pth)/carbon fiber (CF) composites was synthesized by electrochemical polymerization using tetrabutylammoniumtetrafluoroborate (TBAFB) as supporting electrolyte and acetonitrile as solvent. Composites were characterized by TGA, SEM, and mechanical tests and conductivity measurements. Conductivities of composites were in the range of 25 S/cm. SEM studies show that CF were coated by PDMS/Pth matrix and well oriented in the matrix. In mechanical tests it ha...
Conducting polymers with benzothiadiazole and benzoselenadiazole units for biosensor applications
Emre, Fatma Bilge; Ekiz, Fulya; Balan, Abidin; Emre, Sinan; TİMUR, SUNA; Toppare, Levent Kamil (Elsevier BV, 2011-11-15)
Poly(4,7-di(2,3)-dihydrothienol[3,4-b][1,4]dioxin-5-yl-benzo[1,2,5]thiadiazole) (PBDT) and poly(4,7-di(2,3)-dihydrothienol[3,4-b][1,4]dioxin-5-yl-2,1,3-benzoselenadiazole) (PESeE) were electrochemically deposited on graphite electrodes and used as immobilization matrices for biosensing studies. After electrochemical deposition of the polymeric matrices, glucose oxidase (GOx) was immobilized on the modified electrodes as the model enzyme. In the biosensing studies, the decrease in oxygen level as a result of...
Citation Formats
U. GEISSLER, M. HALLENSLEBEN, and L. K. Toppare, “ELECTROCHROMIC FILMS OF VINYLCARBAZOLE DERIVATIVES,” SYNTHETIC METALS, pp. 1662–1667, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/45664.