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

fYear

2010

fDate

26-30 July 2010

Firstpage

30

Lastpage

31

Abstract

Structural and luminescent properties of UV emitting ZnAl₂O₄ powder was studied. It was found that the firing temperature above 1000^οC 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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IVNC.2010.5563188

Filename

5563188