Photoluminescence in CdIn/sub 2/O/sub 4/ and CdGa/sub 2/O/sub 4/

Crystalline samples of CdIn
₂
O
₄
and CdGa
₂
O
₄
of cubic syngony have been prepared using a method similar to that commonly used for preparation of ceramic materials. Photoluminescence spectra measured at temperature 77 and 300 K under Ar laser excitation consist of intensive narrow red bands generated due to recombination involving centers defined by the intrinsic defect structure