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Synthesis and structural, morphological and photoluminescent studies of pure and Eu3+ doped bismuth molybdates

Grant number: 18/09530-6
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): January 01, 2019
Effective date (End): December 31, 2019
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Ieda Lucia Viana Rosa
Grantee:Fabio Augusto Pires
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated research grant:13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID

Abstract

Theoretical and experimental study of inorganic crystals is an interdisciplinary subject that have been attracting intense research and development due to both the fundamental and applied scientific value. Molybdates matrix exhibit interesting structural, optical and photoluminescence properties. The Bi3+ ion as counterion of the matrix exhibits charge, radius and coordination sphere similar to trivalent rare-earth ions, besides not being toxic to humans or the environment. This research project aims to investigate the structural, morphological and photoluminescent properties of pure and Europium doped crystals of Bismuth Molybdate. Orthorhombic Bi2MoO6:Eu3+ crystals will be prepared by a microwave hydrothermal method. This experimental procedure is fast, simple, and efficient to prepare inorganic materials. Microwave radiation affords internal and homogeneous heating of the material, lower temperatures and shorter times of synthesis. The samples will be investigated by X-ray diffraction analysis, field-emission scanning electron microscopy, micro-Raman spectroscopy, ultraviolet-visible spectrophotometry and photoluminescence measurements. Based on considerations above, these new materials exhibit potential characteristics for use in phosphors and electro-optical devices.