Chem. J. Chinese Universities ›› 1983, Vol. 4 ›› Issue (3): 283.

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TERBIUM ACTIVATED BINARY SYSTEMS OF RARE EARTH OXYSULFIDES (Y1-xLax)2O2S, (Y1-xGdx)2O2S,(Gd1-xLax)2O2S AND THEIR LUMINESCENCE PROPERTIES

Huang Zhupo, Xu Gengwang   

  1. Department of Chemistry, Peking University, Beijing
  • Received:1981-12-07 Online:1983-06-24 Published:1983-06-24

Abstract: In order to seek new host materials of phosphor, three binary systems of rare earth oxysulfides (Y1-xLax)2O2S:Tb, (Y1-xGdx)2O2S:Tb and (Gd1-xLax)2O2S:Tb have been investigated. Samples with various compositions of these systems were prepared by sulfidizing the corresponding mixed rare earth oxides at high temperature.The changes of luminous brightness, emission spectra, chromaticity coordinates of samples with matrix compositions have been studied.

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