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Gd 2 O 3 : SiO 2 Nanocomposite: Study on Structural and Optical Behavior
Author(s) -
Ahlawat Rachna
Publication year - 2015
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12405
Subject(s) - materials science , nanocomposite , analytical chemistry (journal) , spectral line , absorption (acoustics) , absorption spectroscopy , nuclear chemistry , nanotechnology , optics , composite material , chemistry , physics , chromatography , astronomy
Gd(NO 3 ) 3 ·6H 2 O and TEOS were used as precursors and obtained powdered form of Gd 2 O 3 : SiO 2 nanocomposite. The as‐prepared sample was annealed at 773 K and 1173 K and characterized by XRD , TEM , UV –Vis spectra, and PL . The average nanocrystallite size was found of the order of ~27 nm using well‐known D ebye– S cherer's equation. From the UV – V is spectra, it was shown that the position of absorption peak has been shifted toward the higher wavelength side with temperature. In the PL spectra, the broad emission band has been observed at 583 nm along with weak bands at 516, 526, and 556 nm.