Tunable Color Emission in a Zn1−xCdxGa2O4 Phosphor and Solid Solubility of CdGa2O4 in ZnGa2O4

Tunable color emission was achieved through forming solid solution between ZnGa2O4 and CdGa2O4, i.e., Zn1−xCdxGa2O4. The solid solubility limit of CdGa2O4 in ZnGa2O4 was found to be 0.6 mole fraction. Thus, solid solution can exist in 0 ≤ x ≤ 0.6 compositions in the Zn1−xCdxGa2O4. Emission color was tunable between 352 and 520 nm in Zn1−xCdxGa2O4 (0 ≤ x ≤ 0.6). Our approach has demonstrated an innovative way of tuning color through the formation of solid solution between CdGa2O4 and ZnGa2O4