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Influence of different substrates on ZnO nanorod arrays properties
Institution:1. Department of Optoelectronic Information Science, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China;2. Department of Physics, University of Kassala, P. O. Box 266, Kassala, Sudan;1. School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia;2. Institute of Nano Optoelectronic Research and Technology (INOR), Block A, sains@usm, Persiaran Bukit Jambul, 11900 Penang, Malaysia;3. Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan;1. Centre of Excellence for Green Energy and Sensor Systems, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India;2. SSN Research Centre, SSN Nagar, Kalavakkam 603110, India;3. Department of E & ECE Indian Institute of Technology, Kharagpur 721302, India;4. Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110016, India;1. School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia;2. Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan;3. University of Yangon, Kamayut, 11041, Yangon, Yangon Region, Myanmar
Abstract:Zinc Oxide (ZnO) nanorod arrays were grown on different substrates by hydrothermal method. The crystallinity of ZnO nanorod was regularly investigated by X-ray diffraction (XRD). Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to examine morphology of the ZnO nanorods. The results indicate that the nanorods grow along 002] orientation. SEM and TEM images and XRD patterns show that the growth of ZnO nanorods on graphene/Quartz substrate is better than the other substrates due to the number and size of the nanorods which are highly affected through the properties of ZnO seed layers and it has lower defects than the other substrates. PL spectra ZnO would have a higher concentration of oxygen vacancy.
Keywords:ZnO  Nanorod  Hydrothermal method  Seed layer
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