Annealing Effect on the Surface Morphology and Photoluminescence Properties of ZnO Hexagonal Rods by Immersion Method

Abstract:

ZnO hexagonal rod structure were prepared by immersion method deposited onto Si (Si/ZnO) and gold-seeded Si substrate (ZnO/Au/Si). The annealing temperatures were varied from 400, 500 and 600 °C. The effect of annealing temperature on the surface morphology and photoluminescence characteristics was investigated. The samples were characterized by Field Emission Scanning Electron Microscope (FESEM) to study their morphology and structural properties while the optical properties were characterized at room temperature using Photoluminescence Spectroscopy. The shape of ZnO showed growth of rods with hexagonal shape. As the annealing temperature increased, the morphology study indicates that diameter size of ZnO decreased while the crystallinity increases. The structures has high surface area, is a potential metal oxide nanostructures to be develop for optoelectronic devices and chemical sensors.

• Periodical: Advanced Materials Research (Volume 576)
• Pages: 353-356
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.576.353
• Online since: October 2012
• Authors: Ab Aziz Azlinda, Zuraida Khusaimi, Mohd Husairi Fadzilah Suhaimi, Nor Iyazi Nasruddin, S. Abdullah, Mohamad Rusop
• Keywords: FESEM, Gold-Seeded Si Substrate, HMTA, Immersion Method, PL

References

[1] S. Kishwar, K. ul Hasan, N. H. Alvi, P. Klason, O. Nur, and M. Willander, A comparative study of the electrodeposition and the aqueous chemical growth techniques for the utilization of ZnO nanorods on p-GaN for white light emitting diodes, Superlattices Microstruct. 49 (2011) 32-42.

DOI: 10.1016/j.spmi.2010.10.004

[2] M. H. Mamat, M. Z. Sahdan, Z. Khusaimi, A. Z. Ahmed, S. Abdullah, and M. Rusop, Influence of doping concentrations on the aluminum doped zinc oxide thin films properties for ultraviolet photoconductive sensor applications, Opt. Mater. 32 (2010) 696-699.

DOI: 10.1016/j.optmat.2009.12.005

[3] D. Barreca, D. Bekermann, E. Comini, A. Devi, R. A. Fischer, A. Gasparotto, C. Maccato, G. Sberveglieri, and E. Tondello, 1D ZnO nano-assemblies by Plasma-CVD as chemical sensors for flammable and toxic gases, Sens. Actuators, B. 149 (2010) 1-7.

DOI: 10.1016/j.snb.2010.06.048

[4] H.-J. Lim, D. Y. Lee, and Y.-J. Oh, Gas sensing properties of ZnO thin films prepared by microcontact printing, Sens. Actuators, A. 125 (2006) 405–410.

DOI: 10.1016/j.sna.2005.08.031

[5] L. Lu, R. Li, K. Fan, and T. Peng, Effects of annealing conditions on the photoelectrochemical properties of dye-sensitized solar cells made with ZnO nanoparticles, Solar Energy. 84 (2010) 844-853.

DOI: 10.1016/j.solener.2010.02.010

[6] C. Liu, Y. Masuda, Y. Wu, and O. Takai, A simple route for growing thin films of uniform ZnO nanorod arrays on functionalized Si surfaces, Thin Solid Films. 503 (2006) 110 – 114.

DOI: 10.1016/j.tsf.2005.12.075

[7] T. Tani, L. Madler, and S. E. Pratsinis, Homogeneous ZnO nanoparticles by flame spray pyrolysis, J. Nanopart. Res. 4 (2002) 337–343.

[8] S. Music, S. Popovic, M. Maljkovic, and Dragcˇevic, Influence of synthesis procedure on the formation and properties of zinc oxide, J. Alloys Compd. 347 (2002) 324–332.

[9] M. H. Mamat, Z. Khusaimi, M. Z. Musa, M. Z. Sahdan, and M. Rusop, Novel synthesis of aligned Zinc oxide nanorods on a glass substrate by sonicated sol-gel immersion, Mater. Lett. 64 (2010) 1211-1214.

DOI: 10.1016/j.matlet.2010.02.053

[10] Z. Khusaimi, S. Amizam, M. H.Mamat, M. Z. Sahdan, M. K. Ahmad, N. Abdullah, and M. Rusop, Controlled growth of zinc oxide nanorods by aqueous-solution method, Synthesis and Reactivity in Inorganic, Met. Org. Nano Met. Chem. 40 (2010) 190-194.

DOI: 10.1080/15533171003629147

[11] Y. Xia, P. Yang, Y. Sun, Y. Wu, B. Mayers, B. Gates, Y. Yin, F. Kim, and H. Yan, One-Dimensional Nanostructures: Synthesis, Characterization, and Applications, Adv. Mater. 15 (2003) 353-389.

DOI: 10.1002/adma.200390087

[12] A. Azlinda, Z. Khusaimi, S. Abdullah, and M. Rusop, Characterization of Urea versus HMTA in the Preparation of Zinc Oxide Nanostructures by Solution-Immersion Method Grown on Gold-Seeded Silicon Substrate, Adv. Mater. Res. 364 (2012) 45-49.

DOI: 10.4028/www.scientific.net/amr.364.45

[13] S. Wei, J. Lian, and H. Wu, Annealing effect on the photoluminescence properties of ZnO nanorod array prepared by a PLD-assistant wet chemical method, Mater. Charact. 61 (2010) 1239-1244.

DOI: 10.1016/j.matchar.2010.08.002

[14] Y. Zhang, G. Du, X. Yang, B. Zhao, Y. Ma, T. Yang, H. C. Ong, D. Liu, and S. Yang, Effect of annealing on ZnO thin films grown on (001) silicon substrate by low-pressure metalorganic chemical vapour deposition, Semicond. Sci. Technol. 19 (2004) 755–758.

DOI: 10.1088/0268-1242/19/6/017

[15] J. Yang, J. Lang, C. L. Yang, Q. Han, Y. Zhang, D. Wang, M. Gao, and X. Liu, Effects of substrate on morphologies and photoluminescence properties of ZnO nanorods, Appl. Surf. Sci. 255 (2008) 2500–2503.

DOI: 10.1016/j.apsusc.2008.07.124

[16] N. A. K. Aznan and M. R. Johan, Quantum Size Effect in ZnO Nanoparticles via Mechanical Milling, J. Nanomater. 2012 (2012) 1-4.

DOI: 10.1155/2012/439010