Microwave Irradiation Effect on Structural, Optical, and Thermal Properties of Cadmium Oxide Nanostructure

• Authors: N. Rajesh , J. Kannan , T. Krishnakumar , G. Neri
• Languages of publication: EN

Abstracts

EN

Cadmium oxide nanostructures were prepared by microwave assisted wet chemical technique at different time intervals. Results on structural, optical, and thermal properties of the CdO nanostructures as a function of the microwave irradiation were reported. The X-ray diffraction data indicates that the sample showed perfection in the microstructural improvement as a function of microwave irradiation. Surface morphological changes with different time of microwave irradiation were recorded by transmission electron microscope and the particle size were found in the ranges from 5 to 30 nm. Chemical composition and thermal stability of the samples were analyzed by energy dispersive X-ray spectrum and thermogravimetric analysis, respectively. The band gaps were shifted towards the blue region due to the Moss-Burstein effect and it exhibited direct band transitions, which corresponds to optical band gaps of 3.92-4.20 eV and contrast behavior of optical properties of CdO nanostructure in UV and IR regions were registered. Room temperature photoluminescence spectra revealed that the intensity of luminescent emission tends to decrease with the increase in exposure of microwave irradiation.

Keywords

EN

81.07.-b; 68.37.Lp; 78.67.-n; 81.70.Jb

Discipline

• 81.70.Jb: Chemical composition analysis, chemical depth and dopant profiling
• 68.37.Lp: Transmission electron microscopy (TEM)
• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)
• 78.67.-n: Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures(for magnetic properties of nanostructures, see 75.75.-c; for electronic transport in nanoscale structures, see 73.63.-b; for mechanical properties of nanoscale systems, see 62.25.-g)

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 125
• Issue: 5
• Pages: 1229-1235

Dates

published

2014-05

received

2013-09-14

Contributors

author

N. Rajesh

• Department of Physics, KSR College of Engineering, Tiruchengode, Tamilnadu - 637215, India

author

J. Kannan

• Department of Physics, KSR Institute for Engineering and Technology, Tiruchengode, Tamilnadu - 637215, India

author

T. Krishnakumar

• Department of Physics, Tagore Institute of Engineering and Technology, Attur, Salem, Tamilnadu - 636112, India

author

G. Neri

• Department of Industrial Chemistry and Materials Engineering, University of Messina, 98166 Messina, Italy

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Identifiers

DOI

10.12693/APhysPolA.125.1229