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Synthesis and Characterization of Single Crystals of Cadmium Iodide as Gamma-ray Radiation Sensor

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Field Value
 
Title Synthesis and Characterization of Single Crystals of Cadmium Iodide as Gamma-ray Radiation Sensor
 
Creator Garg, Alka
Dhingra, Ritu
 
Subject Single crystals
Cadmium iodide
Solution method
XRD
UV-Spectroscopy
 
Description 998-1000
Single crystals of Cadmium iodide have been grown by solution method and characterized by X-ray Diffraction (XRD) to
determine the structural parameters and miller planes which are responsible for X-ray diffraction. The Crystals were subjected
to UV spectroscopy to determine the optical band gap. The value of optical band gap was found to be 3.22 eV, well matched
with the value reported in the literature. The presence of well-defined reflections with low FWHM confirms the good crystalline
quality of single crystals. Single crystals of cadmium iodide have been chosen to design a radiation sensor as it has high
absorption coefficient, wide band gap, and high resistivity. These are the required parameters for a compound semiconductor to
act as a radiation sensor at room temperature. Single crystals were exposed to low dose of gamma radiation emitted by the
source Cobalt-60 to explore their usage in detecting high energy gamma radiations at room temperature. It was observed that on
irradiation the optical band gap decreased but there was no variation in the peak positions of XRD, although the intensity of
XRD peaks decreased. The results have been explained in terms of structural defects produced due to gamma irradiation.
 
Date 2023-12-29T04:42:26Z
2023-12-29T04:42:26Z
2023-12
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/63120
https://doi.org/10.56042/ijpap.v61i12.3404
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(12) (December 2023]