Abstract
We studied the role of intrinsic defects of matrix and Bi dopant in the formation of optical properties and energy structure of CaMoO4:Bi ceramic. Non-elementary luminescence was detected in a pure CaMoO4 matrix due to radiative transitions in intrinsic vacancy-type defects, which are associated with non-stoichiometry in calcium. The experiment showed that Bi ions act as quenchers of luminescence.
Highlights
Scheelite-like oxides of the ABO4 type are promising research objects due to the relative ease of doping and, as a result, the variety of chemical composition and functional characteristics of the compounds obtained
We studied the role of intrinsic defects of matrix and Bi dopant in the formation of optical properties and energy structure of CaMoO4:Bi ceramic
Synthesis of CaMoO4:Bi was made in terms of the standard ceramics models of for Bi2O3, MoO3, CaCO3 stoichiometric compounds grinded in the agate mortar box with the use of alcohol as homogenizer and annealed in 500-700°С temperature range
Summary
Scheelite-like oxides of the ABO4 type are promising research objects due to the relative ease of doping and, as a result, the variety of chemical composition and functional characteristics of the compounds obtained. Scheelite-like compounds are perspective materials for applications in lasers, optoelectronics, photonics, etc [1]
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