Abstract

CdF₂ crystals have the fluorite structure and a gap 7.6eV wide. Under X rays excitation pure crystals show, at temperatures lower than 100 K, an intense blue luminescence. The emission spectrum evidences a large band between 300 and 500 nm with a maximum at about 380 nm⁽¹⁾.In doped samples one observes the same luminescence besides that of the intentional impurity. The same blue emission is obtained also in the electroluminescence of pure and doped CdF₂ crystals⁽²⁾.

© 1984 Optical Society of America