The importance of inversion disorder in the visible light induced persistent luminescence in Cr${}^{3+}$ doped AB${}_2$O${}_4$ (A = Zn or Mg and B = Ga or Al)

Neelima Basavaraju, K. R. Priolkar, Didier Gourier +3

Cr${}^{3+}$ 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, persistent…