Title :
The charge dynamics of thermally wet grown SiO2 electret by corona charging method with constant grid current
Author :
Huamao, Lin ; Zhongfu, XIA ; Shaoqun, Shen ; Hongyan, Zhang ; Yang, Cao ; Jianwei, Zhu
Author_Institution :
Pohl Inst. of Solid State Phys., Tongji Univ., Shanghai, China
Abstract :
In this paper, the decay of the space charge in SiO2 electrets which were corona charged with different parameters of constant grid current was observed, and was compared to that with constant grid voltage. The shift of the centroid of space charges in the sample was determined by capacitance-voltage (C-V) analysis technique. By using these experimental results, the storage and transportation of the space charge in the SiO2 electrets was analyzed
Keywords :
capacitance; corona; electrets; electron traps; high field effects; silicon compounds; space charge; surface charging; surface potential; SiO2; SiO2 electrets; capacitance-voltage analysis; charge dynamics; charge storage; charge transportation; constant grid current; corona charging; space charge; space charge centroid; thermally wet grown SiO2 electret; Capacitance-voltage characteristics; Charge carrier processes; Corona; Current measurement; Electrets; Electrodes; Space charge; Surface charging; Surface discharges; Voltage;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578058
