Effect of temperature on the ML of Au doped (Zn,Cd)S mixed phosphors
Section snippets
Experimental
ZnS and CdS are useful host matrix in luminescence studies and solid solution of ZnS, CdS are seems to be interesting which are chosen for the same. To study the effect of temperature on the ML of doped mixed phosphors, the Au activated hexagonal phosphors having activator concentration 4 × 10−3 (by weight of 1 g of matrix, 10% CdS) were chosen as they exhibit intense ML among the phosphors prepared. ZnS and CdS were taken proper proportion by adding a flux and dopant and were mixed thoroughly in
Results and discussion
The peak corresponding to ML intensity versus time curve of (Zn,Cd)S:Au,Cl phosphors, decrease and shift towards smaller values of time with increasing temperature of the phosphors, Fig. 3, Fig. 4 Shows the plot of the log I versus time “t” curve for (Zn,Cd)S:Au,Cl phosphors. It is seen that there is no change in the slop of log I versus “t” curve with increase in temperature. For the decaying portion of ML, the slop of log I versus “t” curve increases with the increasing temperature of the
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