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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 18, Number 6
BKCSDE 18(6)
June 20, 1997 

 
Title
Preparation and Photoluminescence Properties of the ZnGa2O4 : Mn Phosphor by Polymerized Complex Precursor
Author
Du-Hwan Jo, Ha-Kyun Jung, Sang-Il Seok, Do-Soon Park
Keywords
Abstract
The preparation and photoluminescence properties of ZnGa2O4 : Mn phosphor are presented. Under 254 nm excitation Zn1-xMnxGa2O4 exhibits the green emission band at 506 nm wavelength and maximum intensity where x=0.005. The manganese activated ZnGa2O4 phosphor prepared by the polymerized complex method shows a remarkable increase in the emission intensity and is smaller particle size than that prepared by conventional method. Also, electron paramagnetic resonance study on ZnGa2O4 : Mn powders indicates that the increase in emission intensity after firing treatment in mild hydrogen reducing atmosphere is due to the conversion of the higher valent manganese to Mn2+.
Page
608 - 612
Full Text
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