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Author Boopathi, G. ♦ Mohan, R. ♦ Raj, S. Gokul ♦ Kumar, G. Ramesh
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ABSORPTION SPECTROSCOPY ♦ COPRECIPITATION ♦ DOPED MATERIALS ♦ EMISSION SPECTROSCOPY ♦ ERBIUM COMPOUNDS ♦ EV RANGE ♦ EXCITATION ♦ GADOLINIUM OXIDES ♦ MORPHOLOGY ♦ NANOPARTICLES ♦ NANOSTRUCTURES ♦ PHOTOLUMINESCENCE ♦ SCANNING ELECTRON MICROSCOPY ♦ STRAINS ♦ X-RAY DIFFRACTION ♦ X-RAY SPECTROSCOPY
Abstract An inexpensive preparation method is being reported for obtaining erbium doped gadolinium oxide (Er5%:Gd{sub 2}O{sub 3}) nanoscale rods. The elongated nanoscale systems, as-formed through a co-precipitation process, are characterized by using X-ray powder diffraction (XRD) patterns, scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) mapping, Ultra Violet-visible (UV-vis.) absorption spectroscopy and photoluminescence (PL) spectroscopy. In addition, the Williamson–Hall (W–H) plot is also performed to distinguish the effect of crystalline size-induced broadening and strain-induced broadening at full-width at half-maximum (FWHM) of the XRD profile. The XRD patterns of as-formed and calcined products show that the phase confirmation. As revealed from the SEM micrographs, the morphology of the products show that the rod-like nanoparticles. The EDX micrographs show that the presence of elements in our samples. The band gap values in calcined samples are found to be in the range of 3.569 eV. Upon 230 nm excitation on calcined samples, three broad emission peaks are observed from PL studies. The possible mechanism for the formation of Er5%:Gd{sub 2}O{sub 3} nanorods is briefly discussed.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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