TY - GEN
T1 - Thermally stimulated discharge currents of poly(acrylonitrile-co-acrylic acid)-polypyrrole composites
AU - Cetiner, S.
AU - Olariu, M.
AU - Kaya, N. Ugur
AU - Aradoaei, S.
PY - 2013
Y1 - 2013
N2 - Thermally Stimulated Discharge Currents, one of the oldest destructive method widely used for studying the mechanisms of polarization and depolarization within the dielectrics was employed for determining information related to trapped and/or detrapped charges and activation energy (Ea) within P(AN-co-AA)-PPy composite films. Two peaks or two relaxation regions could be noticed on the TSDC spectra for each material under test: one at a temperature around 323.15K (50°C), attributed to decomposition due to DMF removal as presented in our previous studies, and a second one at 363.15K (90°C), attributed to glass transition temperature. An increased of detrapped charges was observed when the PPy quantity within the P(AN-co-AA) matrix was increased. The same time, both relaxations appeared at very close temperatures for all three samples under test. Complementary measurements for an in-depth electrical analysis were performed with the help of Broadband Dielectric Spectroscopy (BDS), while further information regarding conductive composites structures was obtained through FTIR-ATR analysis.
AB - Thermally Stimulated Discharge Currents, one of the oldest destructive method widely used for studying the mechanisms of polarization and depolarization within the dielectrics was employed for determining information related to trapped and/or detrapped charges and activation energy (Ea) within P(AN-co-AA)-PPy composite films. Two peaks or two relaxation regions could be noticed on the TSDC spectra for each material under test: one at a temperature around 323.15K (50°C), attributed to decomposition due to DMF removal as presented in our previous studies, and a second one at 363.15K (90°C), attributed to glass transition temperature. An increased of detrapped charges was observed when the PPy quantity within the P(AN-co-AA) matrix was increased. The same time, both relaxations appeared at very close temperatures for all three samples under test. Complementary measurements for an in-depth electrical analysis were performed with the help of Broadband Dielectric Spectroscopy (BDS), while further information regarding conductive composites structures was obtained through FTIR-ATR analysis.
KW - Conductive composite
KW - Dielectric properties
KW - Thermally stimulated discharge currents
UR - http://www.scopus.com/inward/record.url?scp=84876372630&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.543.154
DO - 10.4028/www.scientific.net/KEM.543.154
M3 - Conference article in proceedings
AN - SCOPUS:84876372630
SN - 978-3-03-785616-1
T3 - Key Engineering Materials
SP - 154
EP - 158
BT - Materials and Applications for Sensors and Transducers II
A2 - Hristoforou, Evangelos
A2 - Vlachos, Dimitrios S.
PB - Trans Tech Publications Ltd
T2 - 2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2012
Y2 - 24 May 2012 through 28 May 2012
ER -