Synthesis and characterization of Mn-doped Zn2SiO4/SiO2 phosphor particles in core-shell structure |
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| Authors: | Han-Yu Hsieh |
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| Affiliation: | a Department of Materials Science and Engineering, National Taiwan University, 1 Roosevelt Road, Section 4, Taipei 106, Taiwan, ROC |
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| Abstract: | Manganese-doped zinc silicate (Zn2SiO4:Mn) is a kind of phosphor material that has a photo-luminescent (PL) and cathode-luminescent (CL) properties with intensive green light emission at 520 nm. The particles consisting of SiO2@Zn2SiO4:Mn (SiO2 core-Zn2SiO4:Mn shell) were synthesized via colloidal process and forced precipitation. After drying, the Zn/Mn precipitates were coated on the surface of SiO2 particles. The Zn/Mn precipitates reacted with SiO2 and transformed to Zn2SiO4:Mn by suitable calcination. The microstructure, crystalline phase, and luminescent characteristics of the products were studied. Besides, a CL device consisting of the core-shell powder was characterized. |
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| Keywords: | Photonic bandgap Core-shell structure Zn2SiO4 Photoluminescence Cathode luminescence |
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