Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 29, Issue 22, Pages 19368-19381Publisher
SPRINGER
DOI: 10.1007/s10854-018-0066-1
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Pure Sm2O3 and Gd3+ doped Sm2O3 nanocrystalline powders were synthesized using the combustion method. The structural analysis from the Powder X-ray Diffraction revealed that pure and Gd3+ doped -Sm2O3 nanocrystals of cubic phase with Ia < overline > 3 as the space group were produced. The High Resolution Transmission Electron Microscopy results confirmed that monodisperse nanocrystals having spherical shape were formed. The results of the Energy-Dispersive X-ray analysis confirmed that the samples were free from impurities. The UV-Vis-IR absorption and photoluminescence studies, carried out to study their optical properties, showed that these materials could be used for solid state lighting devices, particularly for UV/n-UV (near-ultraviolet) excited white light-emitting diodes. The charge density and photoluminescent behaviour in the chosen system were correlated using the MEM/ Rietveld analysis.
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