Structural and Conductivity Changes of Aluminum-Doped Zinc Oxide Films by Spin Coating Technique

Abstract:

Nanostructured zinc oxide (ZnO) thin films can be obtained by spin coating deposition technique. In this work, the effects of aluminum (Al) doping on the nanostructured ZnO films were investigated. The structural changes of ZnO films doped with Al ranging from 1 to 6 at.% were observed using a field emission scanning electron microscope (FESEM) and an x-ray diffractometer (XRD). The conductivity changes were obtained using a current-voltage (I-V) measurement system. In order to tailor the optical properties of Al-doped ZnO film for optoelectronic applications, its transparency and band gap were obtained using an ultra violet visible (UV-Vis) spectroscopy. The details explanation on the mechanism of ZnO structural and conductivity changes will be discussed detail in this paper.

• Periodical: Advanced Materials Research (Volume 832)
• Pages: 838-842
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.832.838
• Online since: November 2013
• Authors: Mohd Zainizan Sahdan, Zaharah Mohamad, Norhidayah Che Ani, Siti Nooraya Mohd Tawil
• Keywords: Conductivity, Nanostructure, Sol-Gel, Structural Property, Zinc Oxide (ZnO)

References

[1] M.H. Mamat, Z. Khusaimi, M.F. Malik, M.M. Zahidi, M.R.S. Mahmood,Ultra-violet Sensing Characteristic and Field Emission Properties of Vertically Aligned Aluminum Doped Zinc Oxide Nanorod Arrays, AIP Conference Proceeding, 1341 (2010) 440–445

DOI: 10.1109/escinano.2010.5701023

[2] S. Muhammad and U. Ali, Fabrication and characterization of ZnO nanostructures for sensing and photonic device applications, Thesis (2011) 1-76

[3] G. Amin, M. H. Asif, a. Zainelabdin, S. Zaman, O. Nur, and M. Willander, Influence of pH, Precursor Concentration, Growth Time, and Temperature on the Morphology of ZnO Nanostructures Grown by the Hydrothermal Method, Journal of Nanomaterials, Journal of Nanomaterials, (2011) 1–9

DOI: 10.1155/2011/269692

[4] S. Baruah and J. Dutta, Hydrothermal growth of ZnO nanostructures, Science and Technology of Advanced Materials, 10 (2009) 1-18

[5] P. Genevée, F. Donsanti, G. Renou, and D. Lincot,Applied Surface Science Study of the aluminum doping of zinc oxide films prepared by atomic layer deposition at low temperature, Journal applied surface science 264 (2013) 464–469

DOI: 10.1016/j.apsusc.2012.10.045

[6] S. Ilican, Y. Caglar, and M. Caglar, Preparation and characterization of ZnO thin films deposited by sol-gel spin coating method ,Journal of optoelectronics and advanced material. 10 (2008) 2578–2583

DOI: 10.1016/j.tsf.2009.03.037

[7] H.HChih and H. C. Chen, Structural, electrical and optical studies on spray-deposited aluminium-doped ZnO thin films,Journalop science 21 (2010) 28

[8] S. Tewari and a Bhattacharjee, Synthesis and conductivity electrical of Al-doped ZnO nanorod array thin films, Journal of phsic, Pramana 21 (2011) 153–163

DOI: 10.1007/s12043-011-0021-7

[9] V. Shelake, M. P. Bhole, and D. S. Patil ,Aluminium doped zinc oxide films as a transparent conducting electrode for organic light emitting devices, Journal optoelectronics and advanced materials rapid communications 2 (2008) 353–355

[10] H.M Zhou , D. Q Yi, Z.M Yu, L.R Xiao, J Li, Preparation of aluminum doped zinc oxide films and the study of their microstructure, electrical and optical properties, Thin Solid Films 515 (2007) 6909-6914.

DOI: 10.1016/j.tsf.2007.01.041