Abstract
Zn2−xMnxSiO4phosphors were synthesized by a hydrothermal process using ZnO and SiO2. Prismatic Zn4Si2O7(OH)2· H2O particles were formed through heterogeneous nucleation on the surface of the ZnO particles. The Zn2SiO4phase was formed through an isometric phase transition of Zn4Si2O7(OH)2· H2O. Water pressure, as well as the particle size of the raw materials, had a profound effect on the temperature of phase formation. The effect of solution pH on the morphology and growth of the particles was investigated. The photoluminescence of the synthesized Zn2−xMnxSiO4phosphor was also examined. The color coordinate of the Zn2−xMnxSiO4phosphor obtained in this study showed a green color, which was shifted toward short wavelength.
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