Effect of pH on the Structural and Optical Properties of Cadmium oxide Thin Films Prepared Using the Successive Ionic Layer Adsorption and Reaction (SILAR) Method

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Fahmi K. Jawad
Nathera Abass Ali AL-Tememee

Abstract

Cadmium oxide (CdO) thin films were deposited using the sequencing ion layer adsorption and reaction (SILAR) method. In this study, the effect of the pH value of an aqueous solution of cadmium acetate at a concentration of 0.2 mol of the cadmium oxide film was determined. The solution source for the cadmium oxide film was cadmium ions and an aqueous ammonia solution. The CdO films were deposited on glass substrates at a temperature of 90 ℃. The cadmium oxide film thickness was determined by the weight difference method at pH values ​​(7.2, 8.2). X-ray diffraction (XRD) and scanning electron microscopy (SEM) showed that the size of the crystals increased with the increase in the solution (pH). While the UV-visible spectra of the films revealed that the optical band gap energy decreases with increasing (pH) of the CdO solution. The absorbance spectrum of the cadmium oxide film was recorded in the wavelength range (300 – 900) nm. The change in the pH of the cadmium acetate aqueous solution from the energy gap and X-ray diffraction calculations showed that the film had an optical band gap energy and that the highest intensity was at (111) and that the membrane is n-type, as shown by studies to prepare the cadmium oxide membrane using the SILAR method.

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Jawad FK, AL-Tememee NAA. Effect of pH on the Structural and Optical Properties of Cadmium oxide Thin Films Prepared Using the Successive Ionic Layer Adsorption and Reaction (SILAR) Method. IJP [Internet]. 2022 Mar. 1 [cited 2024 Nov. 10];20(1):63-71. Available from: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/975
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References

Mohammed I.M., Abood Z.M., and Chaid S.S., Optical Properties for Mn Doped CdO Thin Films Prepared by spray pyrolysis technique. J. for Engineering and Science, 2020. 3: pp. 70-77.

Karunakaran M., Rubanancy K., Rajini M., Kavitha G., and Chandramohan R., Influence of Dipping Cycle on Physical Properties of Nanocrystalline CdO Thin Films Prepared by SILAR Method. Int. J. Chem. Tech. Res, 2016. 2(01): pp. 84-89.

Manaty A., Kadhim A., Abdullah A., and Abbas K., Preparation and Characterization of Nanostructured Cadmium Oxide CdO Thin Film by Drop CastingIndian. Indian J. of Natural Sciences, 2017. 8: pp. 14293-14297.

Habubi N.F., Abrahim B.A., and Noore E.S., Influence of Irradiation on some Optical Properties of (CdO) Thin Films Prepared by Spray Pyrolysis. International Letters of Chemistry, Physics and Astronomy, 2017. 74: pp. 15-21.

Balu A., Nagarethinam V., Suganya M., Arunkumar N., and Selvan G., Effect of solution concentration on the structural, optical and electrical properties of SILAR deposited CdO thin films. J. Electron Devices, 2012. 12: pp. 739-749.

Mummoorthi M., Anandhan N., Marimuthu T., Ravi G., and Suganya T., An Effect of Supporting Electrolyte Based CdO Polycrystalline Thin Film Prepared by Electrodeposition Method. Int. Journal of Chem Tech Research, 2014. 6(13): pp. 5304-5308.

Zhao Z., Morel D., and Ferekides C., Electrical and optical properties of tin-doped CdO films deposited by atmospheric metalorganic chemical vapor deposition. Thin Solid Films, 2002. 413(1-2): pp. 203-211.

Li X., Gessert T.A., and Coutts T., The properties of cadmium tin oxide thin-film compounds prepared by linear combinatorial synthesis. Applied surface science, 2004. 223(1-3): pp. 138-143.

Devi K.R., Selvan G., Karunakaran M., and Kasirajan K., NH3 sensor based SILAR coated undoped and aluminium doped ZnO thin films. Comp. Eng. J., 2020. 11(1): pp. 249-263.

Salunkhe R., Dhawale D., Gujar T., and Lokhande C., Structural, electrical and optical studies of SILAR deposited cadmium oxide thin films: annealing effect. Materials Research Bulletin, 2009. 44(2): pp. 364-368.

Saleh K.M., Study the Structural Properties and Surface Morphology of CdO thin films prepared by Chemical Spray pyrolysis. Journal of Kufa-Physics, 2020. 12(02): pp. 1-11.

Beevia M.M., Anusuyab M., and Saravananc V., Characterization of CdO thin films prepared by SILAR deposition technique. International Journal of Chemical Engineering Applications, 2010. 1(2): pp. 151-154.

Desai S., Suryawanshi M., Gaikwad M., Mane A., Kim J., and Moholkar A., Investigations on the thickness dependent structural, morphological, and optoelectronic properties of sprayed cadmium based transparent conducting oxide. Thin Solid Films, 2017. 628: pp. 196-202.

Shanmugavel G., Balu A., and Nagarethinam V., Preparation of cadmium oxide thin films by spray technique using perfume atomizer and effect of solvent volume on their physical properties. International Journal of Chemistry and Materials Research Bulletin, 2014. 2(9): pp. 88-101.

Sarma H., Chakrabortty D., and Sarma K., Optical and structural properties of ZnO thin films fabricated by SILAR method. In. Journal of Innovative Research in Science, Engineering and Technology, 2014. 3(10): pp. 16957-16964.

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