Title :
P1–1: Cathodoluminescence of ZnAl2O4 phosphor for the application of UV emission devices
Author :
Kominami, Hiroko ; Iguchi, Taku ; Nakanishi, Yoichiro ; Hara, Kazuhiko ; Kitaura, Mamoru
Author_Institution :
Res. Inst. of Electron., Shizuoka Univ., Hamamatsu, Japan
Abstract :
Structural and luminescent properties of UV emitting ZnAl2O4 powder was studied. It was found that the firing temperature above 1000οC was necessary to prepare the ZnAl2O4 single phase. The CL intensity became stronger according to increase of firing temperature, because of improvement of crystallinity of the powders. The peak position of CL spectra were shifted from 235 nm to 250 nm by control of the ratio of source materials. It indicates that the energy level of the defects can be controllable.
Keywords :
II-VI semiconductors; cathodoluminescence; field emission; lamps; light emitting diodes; phosphors; powders; zinc compounds; CL spectra; UV emission devices; UV emitting powder; ZnAl2O4; cathodoluminescence; luminescent property; structural property; wavelength 235 nm to 250 nm; Firing; Materials; Phosphors; Powders; Temperature; Temperature measurement; Zinc oxide;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2010 23rd International
Conference_Location :
Palo Alto, CA
Print_ISBN :
978-1-4244-7889-7
Electronic_ISBN :
978-1-4244-7888-0
DOI :
10.1109/IVNC.2010.5563188
