Crystallographic Sites Study on Ce3+ in Calcium Magnesium Chlorosilicate
Source abstract
Abstract
Crystallographic sites of Ce3+ in calcium magnesium chlorosihcate-Ca8Mg(SiO4)4Cl2(abbr.CMSC) were investigated. CMSC:Ce3+ was synthesized for the first time and is an efficient purplish blue phosphor. The emission and excitation spectra of Ce3+ in CMSC indicate that two Ce3+emission ceuters present in the CMSC crystal. According to the Van Uitert experimental equation E= Q[1- (V/4),1/V. 10-(n.ea.r)/80](cm-1)and the data of the spectra, the coordination number of Ce3+ in CMSC is eight. Analysing the spectra of CMSC:Ce3+, the crystal structure of CMSC and the atomic radius of Ce3+ ions, we found that two Ce3+ emission centers occupy the octacoordinated Ca sites.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Molecular Sensors and Ion Detection · Solid-state spectroscopy and crystallography
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