Chemical Bath Deposition of Titanium Dioxide/Nickel Oxide (TiO2/NiO) Core-Shell Thin Films

Authors

  • Daniel U. Onah
  • Edwin H. Uguru
  • Rufus O. Ijeh
  • Victoria N. Udeajah
  • Eze Stephen
  • John E. Ekpe

Keywords:

Thermal annealing, Resistivity, RBS, EDS

Abstract

Core-shell thin films of titanium dioxide/nickel oxide (TiO2/NiO) were deposited from aqueous bath on sail brand microscopic glass slides or substrates (Cat. No. 7102) with dimensions of 76.2  25.4  1.1 mm each. The bath contained titanium trichloride solution, sodium hydroxide pellets and polyvinyl alcohol and later nickel sulphate, potassium chloride, ammonia and water. The aim of this paper is to investigate the effects of the annealing temperature on the electrical properties of the films and also to identify the films compositions and determine the crystalline quality of the films. The films’ compositional analysis, energy dispersive spectrometer analysis and electrical properties were obtained from Rutherford backscattering spectrometry, energy dispersive spectrometer and the four points probe respectively. Decrease in electrical resistivity of the films samples from 1.36 x 104Wm – 1.102 x 104Wm was obtained in electrical resistivity measurement when the annealing temperature was increased from 373 to 523K. This implied that the film samples are semiconductor materials.  RBS results showed that the films contained Ca as an impurity, so that there was quantum size effect, thereby reducing the resistivity of the films. The thin films are therefore suitable materials for application in optoelectronics and electroluminescence as semiconductors. 

Dimensions

Agbo, P. E., Nnabuchi, M. N., and Onah, D. U. (2011). TiO2Fe2O3 core-shell thin film for photovoltaic application. Journal of Ovonic Research, 7(2), 29 – 35.

Duffie, J. A. and Beckman, W.A. (2006). Solar Engineering of thermal processes, 3rd ed. John Wiley, New York, 85 – 103.

Elena, V., Lahcen, S., Jose, A. A., Xavire, D., Inti. Z. and Rafel, R. (2000). TiO2 thin film deposition from solution using microwave heating. Thin Solid Films. 365, 12 – 13.

Evtushenk, Y.M. et al., (2015). Optical properties of TiO2 thin films. Physics Procedia, 73, 100 – 107.

Ezugwu, S.C., Ezema, F.I. and Asogwa,, P.U. (2010). Synthesis and characterization of ternary CuSbS2 thin films. Chalcogenide Letters, 7(5), 341 – 348.

Green, M.A. (1982) Solar cells. New Jersey Prentice Hall. England Cliffs New Jersey, 197 – 199.

Habib, M.P. (2005) A chemical route to room temperature synthesis of nanocrystalline TiO2 thin films. Applied Surface Science, 246, 72 – 74.

Islam, S.S. (2006) Semiconductor Physics and Devices, Oxford University Press, New Delhi, 430 – 431.

Kalu, P. N., Onah, D. U., Agbo, P. E., Chikweze, A. C., Anyaegbunam, F. N. C., and Dike, C. O. (2018). The influence of deposition time and annealing temperature on the optical properties of chemical deposited cerium oxide (CeO) thin film. Journal of Ovonic Research, 14(4), 293 – 305.

Mardare, D. and Rusu, G.I. (2004) Comparison of the dielectric properties for doped and undoped TiO2 thin films. Journal of Optelectronics and Advanced Materials, 6 (1), 333 – 336.

Mufti, N., Laila, I.K.R., Hartatiek and Fuad, A. (2017) The effect of TiO2 thin film thickness on self-cleaning glass properties. Journal of Physics: Conf. Series 853, 012036, 1-5.

Nazzal, A.Y., Wang, X., Qu, L., Yu, W., Wang, Y., Peng, X. and Xiao, M. (2004) Environmental effects on photoluminescence of highly luminescent CdSe and CdSe/ZnS core/shell nanocrystals in polymer thin films. J. Phys. Chem. B. 108, 5507 – 5515.

Nelkon, M. and Parker, P. (1995) Advanced Level Physics, 7th ed. J.S. Offset Printers, Delhi, 673 – 674.

Onah, D.U. (2020) Post-deposition sintering on the RBS morphological and electrical properties of TiO2/CoO core-shell thin films. Journal of the Nigerian Association of Mathematical Physics, 54, 191 – 194.

Onah, D.U., Agbo, P.E., Nwodo, M.O., Ijeh, R.O., Uguru, E.H. and Omeje, C.U. (2021) Thermal annealing on the EDS and optical properties of TiO2/CuO core-shell thin films. European Journal of Material Science. 8(2) 1 – 9.

Onah, D.U., Ekpe, J.E., Elebe, M.A. and Nnaji, E. (2013) Optical characterization of chemical bath deposited nanocrystalline TiO2 thin films. Journal of the Nigerian Association of Mathematical Physics, 24, 361-364.

Onah, D.U., Ifeanyichukwu, B.J., Uguru, E.H., Idu, H.K. and Ekpe, J.E (2016) Frequency dependent electrical properties of TiO2/CoO core-shell thin films. International Journal of Engineering Sciences & Research Technology, 5(2), 386 – 390.

Onah, D.U., Nwofe, P.A. and Uguru, E.H. (2016) Influence of post-deposition heat treatment on the optical properties of chemically deposited nanocrystalline TiO2 thin films. Research Journal of Applied Science Engineering and Technology, 13 (3), 253 – 256.

Onah, D.U., Okeke, C.E., Ugwu, E.I. and Ekpe, J.E. (2015) Study of the effects of thermal annealing on the optical and solid state properties of nanocrystalline TiO2/NiO core-shell thin films. Nanoscience and Nanotechnology: An International Journal, 5 (2), 21 – 24.

Onah, D.U., Okeke, E.C., Ezema, F.I., Ekwealor, A.B.C., Osuiji, R.U. and Ezekoye, B.A. (2012) Synthesis, structural and optical properties of novel core-shell oxide materials by chemical bath deposition. Journal of Ovonic Research, 8 (5), 105 – 111.

Patil, V., Pawar, S., Chougule, M., Godse, P., Sakhare, R., Sen, S. and Joshi, P. (2011) Effect of annealing on structural morphological, electrical and optical studies of nickel oxide thin films. Journal of Surface Engineered Materials and Advanced Technology, 1, 35 – 41.

Pillai, S.O. (2010) Solid State Physics, (new revised sixth edition) New Age International Publishers, New Delhi, 539 – 540.

Severiano, F., Garcia, G., Castaneda, L., Gracia-Jimenez, J. M., Gomez-Pozos, H., and Luna-Lopez, J. A. (2014). Electroluminescent devices based on junctions of indium doped zinc oxide and porous silicon. Journal of Nanomaterials, 2014, ID409493, 1 – 2.

Simon, S.H. (2013) The Oxford Solid State Basics, Oxford University press, Oxford, 190 – 191.

Solanki, C.S. (2014) Solar photovoltaic technology and systems, PHI Learning Private Ltd, Delhi, 189 – 190.

Sze, S.M. (1981) Physics of Semiconductor Devices, second edition, John Wiley & Sons New York, 816 – 819.

Uhuegbe, C.C. (2001) Spectral selective properties and possible applications of iron zinc sulphide ternary thin film. Journal of Basic and Applied Scientific Research, 1(4), 307 – 311.

Ukobe, K.O., Eloka – Eboka, A.C. and Inambo, F.L. (2018) Review of nanostructured NiO thin film deposition using the spray pyrolysis technique. Renewable and Sustainable Energy Reviews, 82, 2900 – 2915.

Zaouche, C., Aoun, Y., Benramache, S. and Gahtar, A. (2019) Synthesis and characterization of deposited NiO thin films by spray pyrolysis technique. The Scientific Bulletin of MALAHIA University: Materials and Mechanics, 17 (17), 27 – 32.

Published

2023-08-21

How to Cite

Onah, D. U., Uguru, E. H., Ijeh, R. O., Udeajah, V. N., Stephen, E., & Ekpe, J. E. (2023). Chemical Bath Deposition of Titanium Dioxide/Nickel Oxide (TiO2/NiO) Core-Shell Thin Films. Nigerian Journal of Physics, 32(2), 34-39. https://njp.nipngr.org/index.php/njp/article/view/54

Issue

Vol. 32 No. 2 (2023): Nigerian Journal of Physics - Vol. 32 No. 2

Section

Articles
Copyright & Licensing

How to Cite

Onah, D. U., Uguru, E. H., Ijeh, R. O., Udeajah, V. N., Stephen, E., & Ekpe, J. E. (2023). Chemical Bath Deposition of Titanium Dioxide/Nickel Oxide (TiO2/NiO) Core-Shell Thin Films. Nigerian Journal of Physics, 32(2), 34-39. https://njp.nipngr.org/index.php/njp/article/view/54