DocumentCode :
3553721
Title :
Growth of potassium tantalate dielectric crystals and their application as photovoltaic UV detectors
Author :
Maciolek, R.B. ; Liu, S.T.
Author_Institution :
Honeywell Corporate Research Center, Bloomington, Minnesota
Volume :
19
fYear :
1973
fDate :
1973
Firstpage :
96
Lastpage :
98
Abstract :
Large single crystals ( 
cm) of KTaO3 have been grown by the Czochralski method. The growth parameters and electrical properties have been investigated. Crystals were grown either highly insulating ( 
) or semiconducting n-type depending upon growth conditions. Photovoltaic cells were made by contacting the KTaO3 with either evaporated thin metal films or silver paint. The ultraviolet (UV) responsivity and detectivity of an a.c. photovoltaic cell using KTaO3 has been measured. Under no-bias conditions the responsibity was 
V/W and the detectivity, Dλ *, was 
cm Hz1/2/W at 3000Å measured a t 20 Hz. Other properties are also discussed.
cm) of KTaO ) or semiconducting n-type depending upon growth conditions. Photovoltaic cells were made by contacting the KTaO V/W and the detectivity, D cm Hz1/2/W at 3000Å measured a t 20 Hz. Other properties are also discussed.Keywords :
Contacts; Crystals; Detectors; Dielectrics; Insulation; Photovoltaic cells; Photovoltaic systems; Semiconductivity; Semiconductor films; Solar power generation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electron Devices Meeting, 1973 International
Type :
conf
DOI :
10.1109/IEDM.1973.188657
Filename :
1477534
Link To Document :
