Abstract
CdO films were prepared using a chemical spray paralysis (CSP) method on the glass substrate at a temperature of 350 ° C and thickness (260 ± 15 nm), and study the effect time of annealing (0, 1, 1.5, 2, 2.5) h at a 450 °C annealing temperature On structural properties.from X-ray diffraction pattern the results showed that all CdO thin films have a polycrystalline crystalline structure and a prevalent growth in the direction (111), and the average grain size (G) in this direction ranges (29.80 - 33.23) nm. It generally increases in value while the agitation values, extraction density, number of crystals decrease by increasing the time of annealing (1-2) h of thin films.And from resulted of Atomic Force Microscope (AFM) the surface roughness , root mean square ( RMS ) and average grain size increase with increasing of annealing time, Expect for melting thin films at temperatures 450 ̊C and for the time of annealing 2.5h note decrease slightly may be the possibility of an occurrence the cracks- free of the thin films component.
Highlights
A thin film is described as a layer or several layers of atoms of a particular substance with a thickness not exceeding one micrometer
Cadmium oxide is one of the chemical compounds of the cadmium element, as it dissolves in water or in the bases but dissolves in acids and ammonia salts, It can be obtained from the intense heating of cadmium [2]
Cadmium oxide has been used as thermal transparent materials for vehicle and aircraft windows, and as window layers in the Hetrojunction Solar Cell as well as used in the manufacture of solar cell systems [5], because of its laboratories High absorption that enables it to be used as Absorbent Compound Selective in solar thermal complexes and as a gas sensor [6]
Summary
A thin film is described as a layer or several layers of atoms of a particular substance with a thickness not exceeding one micrometer. Cadmium oxide is a negative semiconducting material (n-Type) and has been classified as a Transparent Conductive Oxides (TCO) group because of its different physical properties such as high permeability in the visible area of the electromagnetic spectrum and the movement of high charge carriers and the large energy gap [4] On this basis, cadmium oxide has been used as thermal transparent materials for vehicle and aircraft windows, and as window layers in the Hetrojunction Solar Cell as well as used in the manufacture of solar cell systems [5], because of its laboratories High absorption that enables it to be used as Absorbent Compound Selective in solar thermal complexes and as a gas sensor [6]
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