Structural and optical studies of CaSO4:Ce3+ nanorods for display and dosimetric applications

. The CaSO 4 :Ce 3+ (1-9mol%) nanorods were successfully synthesized by co-precipitation method. Preliminary crystallographic, structural and optical studies of the prepared nanorods were done using powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy...

Full description

Saved in:
Bibliographic Details
Published in:European physical journal plus 2019-04, Vol.134 (4), p.177, Article 177
Main Authors: Yashaswini, Pandurangappa, C., Dhananjaya, N.
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Applied and Technical Physics
Atomic
Cerium
Chromaticity
Color temperature
Complex Systems
Condensed Matter Physics
Crystallites
Crystallography
Electron diffraction
Fourier transforms
Glow curves
Hexagonal lattice
Infrared spectroscopy
Mathematical and Computational Physics
Molecular
Nanophosphors
Nanorods
Optical and Plasma Physics
Parameter estimation
Phosphors
Photoluminescence
Photomicrographs
Physics
Physics and Astronomy
Regular Article
Scanning electron microscopy
Spectrum analysis
Theoretical
Thermoluminescence
Transmission electron microscopy
X ray powder diffraction
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:. The CaSO 4 :Ce 3+ (1-9mol%) nanorods were successfully synthesized by co-precipitation method. Preliminary crystallographic, structural and optical studies of the prepared nanorods were done using powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), Fourier transform infrared spectroscopy (FTIR), UV-visible absorption spectroscopy, photoluminescence (PL) and thermoluminescence (TL). The CaSO 4 :Ce 3+ has a single phase hexagonal lattice structure with space group P3 1 21(152). The average crystallite size was calculated using Scherrer’s formula and found to be in the range 41-62 nm which is in good agreement with TEM results. The SEM micrographs shows rod like structure with various sizes. Upon 350 nm excitation, the CaSO 4 :Ce 3+ nanophosphor showed emission at 390, 405 and 430 nm, which is characteristic luminescence of 5 d → 4 f ( 2 F 5/2 , 2 F 7/2 ) transitions of the Ce 3+ ions. The chromaticity co-ordinates and correlated color temperature of all the phosphors were well located in blue region. TL glow curve response of the prepared nanorods with 500 Gy γ -irradiated was studied. TL glow curve contains glow peak at 188 ° C. Kinetic parameters was estimated for deconvoluted TL glow peaks and studied in detail.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/i2019-12613-3