Basavaraju, N.; Priolkar, K.R.; Gourier, D.; Sharma, S.K.; Bessiere, A.; Viana, B.
(Physical Chemistry Chemical Physics. 2015(17); 2015; 1790-1799.)
Cr sup(3+) doped spinel compounds AB(2)O(4) with A = Zn, Mg and B = Ga, Al exhibit a long, near infrared persistent luminescence when excited with UV or X-rays. In addition, the persistent luminescence of ZnGa(2)O(4), and ...