Title :
Transport, injection and storage of electric charges in alumina (Al 2O3) single crystals
Author :
Farhat, Najeh ; Alquie, Claude ; Lewiner, Jacques
Author_Institution :
Lab. d´´Electr. Gen., Ecole Superieure de Phys. et de Chimie Ind., Paris, France
Abstract :
In this paper we describe the application of the pressure wave propagation method to the non-destructive measurement of the space charge dynamics in Al2O3 single crystals, under high voltage, at room temperature. A build up of a positive space charge in the vicinity of the anode is observed, and a mechanism is proposed to explain the origin of this charge
Keywords :
alumina; electrets; electron traps; space charge waves; space-charge-limited conduction; 20 C; Al2O3; alumina single crystal; electric charge injection; electric charge storage; electric charge transport; pressure wave propagation method; space charge dynamics; Charge measurement; Crystals; Current measurement; Dielectrics and electrical insulation; Electrodes; Optical pulse generation; Polarization; Pressure measurement; Space charge; Voltage;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514778
