TY  - JOUR
A1  - Sarac, A. Sezai
A1  - Gencturk, Asli
A1  - Gilsing, Hans-Detlev
A1  - Schulz, Burkhard
A1  - Turhan, C. Metehan
T1  - Effect of electrolyte on the electropolymerization of 2,2-dibutyl-3,4-propylenedioxythiophene on carbon fiber microelectrodes
N2  - Electrocoating of 2,2 dibutylpropylene dioxythiophene on carbon fiber microelectrodes (CFMEs) in different electrolytes in acetonitrile was performed, and surface morphology and electrochemical impedance spectroscopic investigation has been carried out. Impedance spectra showed the typical form of Z(IM) versus Z(RE) for transmission- line at frequencies 10 Hz, with transition to almost pure capacitive behaviour down to 10 mHz (the lower limit of frequency scan).
Y1  - 2009
UR  - http://aspbs.com/jnn/
U6  - https://doi.org/10.1166/Jnn.2009.027
SN  - 1533-4880
ER  - 
TY  - JOUR
A1  - Turhan, Metehan C.
A1  - Sarac, A. Sezai
A1  - Gencturk, Asli
A1  - Gilsing, Hans-Detlev
A1  - Faltz, Heike
A1  - Schulz, Burkhard
T1  - Electrochemical impedance characterization and potential dependence of poly[3,4-(2,2-dibutylpropylenedioxy)thiophene] nanostructures on single carbon fiber microelectrode
JF  - Synthetic metals : the journal of electronic polymers and electronic molecular materials
N2  - The electropolymerization of 3,4-(2,2-dibutylpropylenedioxy)thiophene (ProDOT-Bu-2) onto single carbon fiber microelectrode (SCFME) was conducted in acetonitrile (ACN) containing sodium perchlorate (NaClO4) as electrolyte and investigated by cyclic voltammetry (CV). The nanostructured films of poly[3,4-(2,2-dibutyl-propyleneclioxy)thiophene] (PProDOT-Bu-2) which were depositing showed complete reversible redox behavior in monomer-free electrolyte solution.
 The capacitive behavior of the films was investigated by electrochemical impedance spectroscopy (EIS) at applied potentials from 0.1 V to 1.3 V. The analysis by equivalent circuit modeling revealed an applied potential around 0.4V to be most suitable for the system PProDOT-Bu-2/SCFME as a double layer supercapacitor component inducing a double layer capacitance C-d, value of 62 mFcm(-2).
KW  - Nanostructure
KW  - Electrochemical impedance spectroscopy
KW  - Conjugated polymeric thin film
KW  - Carbon fiber
Y1  - 2012
U6  - https://doi.org/10.1016/j.synthmet.2012.01.012
SN  - 0379-6779
VL  - 162
IS  - 5-6
SP  - 511
EP  - 515
PB  - Elsevier
CY  - Lausanne
ER  - 
TY  - JOUR
A1  - Guler, Fatma G.
A1  - Gilsing, Hans-Detlev
A1  - Schulz, Burkhard
A1  - Sarac, A. Sezai
T1  - Impedance and morphology of hydroxy- and chloro-functionalized poly(3,4-propylenedioxythiophene) nanostructures
JF  - Journal of nanoscience and nanotechnolog
N2  - The new 3,4-propylenedioxythiophenes (ProDOT) bearing hydroxy- or chloro-functionalized side chains of varying length and polarity were synthesized and electropolymerized on single carbon fiber microelectrode (SCFME) using cyclo-voltammetry. Electrochemical impedance spectroscopy (EIS) revealed highest capacitance values for the hydroxy-functionalized Poly 5 carrying a side chain of medium length. The EIS data were fitted with an equivalent electrical circuit giving a good correlation. AFM analysis of the topography showed higher roughness values for Poly 5 than for the two other polymers bearing longer side chains. Due to their reactive end groups the polymers should be useful for post-polymerization functionalization of the electrode surface.
KW  - 3,4-Propylenedioxythiophene
KW  - Electroactive Conjugated Polymer
KW  - EIS
KW  - AFM
Y1  - 2012
U6  - https://doi.org/10.1166/jnn.2012.6594
SN  - 1533-4880
VL  - 12
IS  - 10
SP  - 7869
EP  - 7878
PB  - American Scientific Publ.
CY  - Valencia
ER  -