Spectrochim Acta A Mol Biomol Spectrosc. 2015 Oct 05;149:312-6. doi: 10.1016/j.saa.2015.04.047. Epub 2015 Apr 24.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
P V Ramakrishna
PMID: 25965514 DOI: 10.1016/j.saa.2015.04.047
Gadolinium (Gd(3+)) doped CaMoO4:Eu nanoparticles were prepared via facile auto-combustion route and annealed at 900 °C for ∼4 h. X-ray diffraction study confirms the tetragonal scheelite type of CaMoO4 phase. Low voltage cathodoluminescent (CL) measurement were performed for Gd(3+) (0 and 10 at.%) co-doped CaMoO4:Eu as a function of accelerating voltage and filament current. CL studies confirm that Gd(3+) co-doped CaMoO4:Eu has a visible emission peak centered at ∼615 nm and a broad host emission band in the range 380-550 nm. Commission Internationale de L'Eclairage chromaticity diagram co-ordinates of Gd(3+) co-doped CaMoO4:Eu are found to be in reddish orange region as was observed through photoluminescence and CL spectra.
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Keywords: CIE coordinates; Cathodoluminescence; Penetration depth; X-ray diffraction
