Space charge behavior in polymer film based on increment of capacitance under AC high field

2002 ◽  
Vol 141 (2) ◽  
pp. 8-16 ◽  
Author(s):  
Masayuki Fujii ◽  
Kazuyuki Tohyama ◽  
Tetsuro Tokoro ◽  
Masamitsu Kosaki ◽  
Yuji Muramoto ◽  
...  
Keyword(s):  
Space Charge ◽  
Polymer Film ◽  
High Field

SPACE-CHARGE LAYER, INTRINSIC "BULK" AND SURFACE COMPLEX DEFECTS IN ZnO NANOPARTICLES — A HIGH-FIELD ELECTRON PARAMAGNETIC RESONANCE ANALYSIS

2013 ◽  
Vol 06 (04) ◽  
pp. 1330004 ◽  
Author(s):  
RÜDIGER-A. EICHEL ◽  
EMRE ERDEM ◽  
PETER JAKES ◽  
ANDREW OZAROWSKI ◽  
JOHAN VAN TOL ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Space Charge ◽  
Zno Nanoparticles ◽  
High Field ◽  
Space Charge Layer ◽  
Paramagnetic Resonance ◽  
Charge Layer ◽  
Type Formula ◽  
Field Electron ◽  
Electron Paramagnetic

The defect structure of ZnO nanoparticles is characterized by means of high-field electron paramagnetic resonance (EPR) spectroscopy. Different point and complex defects could be identified, located at the "bulk" or the surface region of the nanoparticles. In particular, by exploiting the enhanced g-value resolution at a Larmor frequency of 406.4 GHz, it could be shown that the resonance commonly observed at g = 1.96 is comprised of several overlapping resonances from different defects. Based on the high-field EPR analysis, the development of a space-charge layer could be monitored that consists of (shallow) donor-type [Formula: see text] defects at the "bulk" and acceptor-type [Formula: see text] and complex [Formula: see text] defects at the surface. Application of a core-shell model allows to determine the thickness of the depletion layer to 1.0 nm for the here studied compounds [J.J. Schneider et al., Chem. Mater.22, 2203 (2010)].

Space charge and high field phenomena in polyethylene

2003 ◽  
Author(s):  
T. Mizutani ◽  
Y. Suzuoki ◽  
Y. Matsukawa ◽  
A. Oganesyan ◽  
K. Hattori ◽  
...  
Keyword(s):  
Space Charge ◽  
High Field

scholarly journals Conduction mechanism in (ZnO/PVC) polymer nanocomposite

2021 ◽  
Vol 2070 (1) ◽  
pp. 012007
Author(s):  
A Joy Singh
Keyword(s):  
Electrical Conductivity ◽  
Electric Field ◽  
Space Charge ◽  
Applied Electric Field ◽  
High Field ◽  
Conduction Mechanism ◽  
Polymer Nanocomposite ◽  
Zno Nanoparticle ◽  
Pure Sample ◽  
Transition Field

Abstract The electrical conductivity of ZnO nanoparticle doped PVC polymer of different concentrations and thickness has been investigated as a function if applied electric field and temperature. The LnJ versus E1/2 plot for the pure sample shows transition field but for highly doped sample, the plot shows curvature for both low and high field, i.e., there is no transition field. This nonlinearity of the plot is due to space charge built up in the sample. The value of β is calculated from the slope of LnJ versus E1/2 plot and compared with the theoretical value. The result shows the Poole-Frenkel mechanism of conduction is operative.

scholarly journals Study on the Increment of Charging Current of Polymer Film in AC High-Field Region near Breakdown

2001 ◽  
Vol 121 (6) ◽  
pp. 573-579
Author(s):  
Masayuki Fujii ◽  
Kazuyuki Tohyama ◽  
Tetsuro Tokoro ◽  
Masamitsu Kosaki ◽  
Yuji Muramoto ◽  
...  
Keyword(s):  
Polymer Film ◽  
High Field ◽  
Field Region ◽  
High Field Region ◽  
Charging Current
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