Modification of ZnS∶Mn Phosphors by Sb-Doped SnO2 Coating

稀土学报(英文版), 2006, 24(z1): 87-90.

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1.Chemistry and Materials Science Department, Shandong Normal University, Jinan 250014, China

2.Chemistry and Materials Science Department, Shandong Normal University, Jinan 250014, China

3.Chemistry and Materials Science Department, Shandong Normal University, Jinan 250014, China

4.Chemistry and Materials Science Department, Shandong Normal University, Jinan 250014, China

5.Chemistry and Materials Science Department, Shandong Normal University, Jinan 250014, China

基金项目: 山东省自然科学基金(Y2002G11) 国家自然科学基金(20572064)

Modification of ZnS∶Mn Phosphors by Sb-Doped SnO2 Coating

Keywords： zinc sulfide

The coating of ZnS∶Mn by Sb-doped SnO2 using an co-precipitation process was reported. ZnS∶Mn phosphor particles were prepared by solid reaction with ZnS and MnCl2·4H2O. Surface modification of the ZnS∶Mn powders was carried out by coating transparent conductive films of Sb-doped tin oxides which were formed by co-precipitation and heat treatment process. Tin tetrachloride and antimony trichloride were used as the precursor materials for the co-precipitation. The influences of coating molar ratio, Sb concentration in the coatings, annealing temperature and time on the resistivity of coated ZnS∶Mn phosphors were investigated. The optimum co-precipitation processing parameters and annealing conditions were determined. The phosphors were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), photoluminescence(PL) observation and conductance measurements. An improvement in phosphors conductivity was observed while the respective photoluminescence intensity is analogous to the as-prepared ZnS∶Mn phosphors.

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Modification of ZnS∶Mn Phosphors by Sb-Doped SnO2 Coating

参考文献