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Investigation of structural and optical characteristics of CuO nanoparticles calcinated at various temperatures

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Title Investigation of structural and optical characteristics of CuO nanoparticles calcinated at various temperatures
 
Creator Sihag, Smriti
Dahiya, Rita
Rani, Suman
Anushree
Kumar, Ashvani
Kumar, Vinay
 
Subject Band gap
Calcination
Copper oxide
Optical properties
XRD
 
Description 578-582
Copper oxide nanoparticles (CuO) have been synthesized by utilizing a precipitation approach with copper nitrate
(Cu(NO3)2.3H2O) as a precursor and sodium hydroxide as a stabilizing agent at different calcination temperatures i.e. 400,
600, and 800°C. X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy
(FTIR), UV-Visible spectroscopy (UV-Vis), and photoluminescence spectroscopy (PL) were used to look at the sample’s
different characteristics. The XRD analysis show that copper oxide nanoparticles have a monoclinic structure with crystallite
sizes increasing with increasing calcination temperature up to 600°C, then decreased at 800°C. Also, with increasing
temperature, XRD peaks were observed to become sharper, indicating better crystallinity of the samples. FE-SEM image
show that synthesized CuO exhibit a flake-like structure, but on calcination it attained a regular particle like structure. The
band gap of the material increased as the crystallite size of the material decreased. Photoluminescence intensity was
observed to increase with temperature up-to 600C and then decreased at 800C. The temperature at which copper oxide
nanoparticles were calcined demonstrated to have a considerable impact on their structural and optical properties. The
synthesized copper oxide nanoparticles may be employed in the field of electronics in making transistors, heterojunctions,
diodes etc. in optoelectronics devices like solar cells, light emitting diodes and in environmental protection for developing
gas sensors.
 
Date 2022-08-31T06:51:21Z
2022-08-31T06:51:21Z
2022-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/60421
https://doi.org/10.56042/ijct.v2925.61511
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.29(5) [September 2022]