Fig. 4: Phase, luminescence and elements distribution of prepared Cs2Na0.9Ag0.1InCl6:Tb.

a XRD patterns of Cs2Na0.9Ag0.1InCl6: xTb3+ (x = 0, 1%, 5%, 10%); b PLE and PL spectra of Cs2Na0.9Ag0.1InCl6: 10%Tb3+; c Integrated PL intensity as a function of the feeding contents of Tb; d SEM image and component elements maps of the Cs2Na0.9Ag0.1InCl6:10%Tb3+; e EDS profile of the line scanning marked in (d)