Structural, Morphological and Optical Properties of Zinc Oxide Nanorods prepared by ZnO seed layer Annealed at Different Oxidation Temperature
Keywords:Zinc Oxide, Nanorods, Oxidation temperature, sol-gel
In this work, zinc oxide (ZnO) nanorods structure in the form of thin film have been grown on soda-lime glass (SLG) substrate incorporating two simple steps. Firstly, ZnO seed layer was pre-deposited onto the SLG substrate by the thermal evaporation method. During this process, the oxidation temperatures were varied in the range of 450 oC to 650 oC annealed for 3 hours. Then, the nanorods structure were grown on the surface of the seed layer by sol-gel immersion method with the use of zinc nitrate hexahydrate (Zn(NO3)2·6H2O) and hexamethylenetetramine (HMT) in deionized (DI) water. The optical, structural and morphological properties at different oxidation temperatures were studied using UV-Vis-NIR spectroscopy, X-ray diffraction (XRD) and Field-enhanced Scanning Electron Microscopy (FeSEM). The surface morphology results revealed the formation of hexagonal shaped ZnO on top of the seed layer as a result of heterogeneous nucleation. X-ray diffraction results show that the c-axis orientation became more prominent while the optical band gap of ZnO thin films decreases from 3.31 eV to 3.14 eV as the annealing temperature increased respectively. It is shown that the size and alignment of ZnO NRs are greatly affected by the pre-deposition annealed temperature of the ZnO seed layer on the surface of SLG substrate.
Theerthagiri, J., S. Salla, R.A. Senthil, P. Nithyadharseni, A. Madankumar, P. Arunachalam, T. Maiyalagan and H.-S. Kim, A review on ZnO nanostructured materials: energy, environmental and biological applications. Nanotechnology, 2019. 30(39): p. 392001.
Sandeep, K.M., S. Bhat and S.M. Dharmaprakash, Structural, optical, and LED characteristics of ZnO and Al doped ZnO thin films. Journal of Physics and Chemistry of Solids, 2017. 104: p. 36-44.
Zahoor, R., A. Jalil, S.Z. Ilyas, S. Ahmed and A. Hassan, Optoelectronic and solar cell applications of ZnO nanostructures. Results in Surfaces and Interfaces, 2021. 2: p. 100003.
Antony, A., S. Pramodini, P. Poornesh, I.V. Kityk, A.O. Fedorchuk and G. Sanjeev, Influence of electron beam irradiation on nonlinear optical properties of Al doped ZnO thin films for optoelectronic device applications in the cw laser regime. Optical Materials, 2016. 62: p. 64-71.
Mahmoud, A., M. Echabaane, K. Omri, L. El Mir and R. Ben Chaabane, Development of an impedimetric non enzymatic sensor based on ZnO and Cu doped ZnO nanoparticles for the detection of glucose. Journal of Alloys and Compounds, 2019. 786: p. 960-968.
Drobek, M., J.-H. Kim, M. Bechelany, C. Vallicari, A. Julbe and S.S. Kim, MOF-Based Membrane Encapsulated ZnO Nanowires for Enhanced Gas Sensor Selectivity. ACS Applied Materials & Interfaces, 2016. 8(13): p. 8323-8328.
Taufiq, A., H.N. Ulya, C.I. Yogihati, Sunaryono, N. Hidayat, N. Mufti, Masruroh, S. Soda and T. Ishida, Effects of ZnO nanoparticles on the antifungal performance of Fe3O4/ZnO nanocomposites prepared from natural sand. Advances in Natural Sciences: Nanoscience and Nanotechnology, 2020. 11(4): p. 045004.
Yadollahi, M., I. Gholamali, H. Namazi and M. Aghazadeh, Synthesis and characterization of antibacterial carboxymethyl cellulose/ZnO nanocomposite hydrogels. International Journal of Biological Macromolecules, 2015. 74: p. 136-141.
Shetti, N.P., S.D. Bukkitgar, K.R. Reddy, C.V. Reddy and T.M. Aminabhavi, ZnO-based nanostructured electrodes for electrochemical sensors and biosensors in biomedical applications. Biosensors and Bioelectronics, 2019. 141: p. 111417.
Ding, M., Z. Guo, L. Zhou, X. Fang, L. Zhang, L. Zeng, L. Xie and H. Zhao, One-Dimensional Zinc Oxide Nanomaterials for Application in High-Performance Advanced Optoelectronic Devices. Crystals, 2018. 8(5): p. 223.
Ye, Z., T. Wang, S. Wu, X. Ji and Q. Zhang, Na-doped ZnO nanorods fabricated by chemical vapor deposition and their optoelectrical properties. Journal of Alloys and Compounds, 2017. 690: p. 189-194.
Thongsuksai, W., G. Panomsuwan and A. Rodchanarowan, Fast and convenient growth of vertically aligned ZnO nanorods via microwave plasma-assisted thermal evaporation. Materials Letters, 2018. 224: p. 50-53.
Laila, I.K.R., N. Mufti, S. Maryam, A. Fuad, A. Taufiq and Sunaryono, Synthesis and Characterization of ZnO Nanorods by Hydrothermal Methods and Its Application on Perovskite Solar Cells. Journal of Physics: Conference Series, 2018. 1093: p. 012012.
Di Mauro, A., M. Cantarella, G. Nicotra, V. Privitera and G. Impellizzeri, Low temperature atomic layer deposition of ZnO: Applications in photocatalysis. Applied Catalysis B: Environmental, 2016. 196: p. 68-76.
Ocakoglu, K., S.A. Mansour, S. Yildirimcan, A.A. Al-Ghamdi, F. El-Tantawy and F. Yakuphanoglu, Microwave-assisted hydrothermal synthesis and characterization of ZnO nanorods. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015. 148: p. 362-368.
Toe, M.Z., N.A.H.N. Jusoh, S.Y. Pung, K.A. Yaacob, A. Matsuda, W.K. Tan and S.S. Han, Effect of ZnO Seed Layer on the Growth of ZnO Nanorods on Silicon Substrate. Materials Today: Proceedings, 2019. 17: p. 553-559.
Mahendran, R., M. Kashif, D. Manickam, M. Venkatachalam, T. Kumar, A. Mariam, S. Chinnappanadar and U. Hashim, Structural and optical characterization of ZnO thin films annealed at different temperatures. Journal of Applied Sciences Research, 2013.
Islam, M.S., M.F. Hossain, S.M.A. Razzak, M.M. Haque and M.N.I. Khan. Zinc oxide thin film fabricated by thermal evaporation method for water splitting application. in 2015 International Conference on Electrical & Electronic Engineering (ICEEE). 2015.
Gill, R., S. Ghosh, A. Sharma, D. Kumar, V.-H. Nguyen, D.-V.N. Vo, T.-D. Pham and P. Kumar, Vertically aligned ZnO nanorods for photoelectrochemical water splitting application. Materials Letters, 2020. 277: p. 128295.
Salem, K.E., A.M. Mokhtar, I. Soliman, M. Ramadan, B.S. Shaheen and N.K. Allam, Ge-doped ZnO nanorods grown on FTO for photoelectrochemical water splitting with exceptional photoconversion efficiency. International Journal of Hydrogen Energy, 2021. 46(1): p. 209-220.
Copyright (c) 2022 MUHAMMAD SAFWAN ABD AZIZ
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.