Title :
TSD currents in some rare-earth-oxide-based thin-film sandwiches
Author :
Wiktorczyk, Tadeusz
Author_Institution :
Inst. of Phys., Wroclaw Univ., Poland
Abstract :
Characteristics of thermally stimulated currents in metal/insulator/metal (MIM) thin-film sandwiches based on some rare earth oxides (sesquioxides of ytterbium, dysprosium and holmium) are presented. Electrical measurements were carried out for temperatures from 297 K to 500 K. The influence of the polarizing temperature, voltage and heating rate on the TSD characteristics was examined. The TSD thermograms for examined different rare earth oxides were very similar and are characterized by a single peak connected with 0.5-0.7 eV traps
Keywords :
MIM structures; aluminium; dielectric depolarisation; dielectric polarisation; dielectric thin films; dysprosium compounds; electrets; electron traps; hole traps; holmium compounds; thermally stimulated currents; ytterbium compounds; 0.5 to 0.7 eV; 297 to 500 K; Al-Dy2O3-Al; Al-Ho2O3-Al; Al-Yb2O3-Al; Al/insulator/Al thin-film sandwich; Dy2O3; Ho2O3; Yb2O3; electrets; electrical measurements; heating rate; polarizing temperature; polarizing voltage; thermally stimulated currents; traps; Aluminum; Annealing; Conductivity; Electric variables measurement; Electrodes; Metal-insulator structures; Polarization; Temperature; Transistors; Voltage;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514789
