Annealing effect on the surface morphology and photoluminescence properties of ZnO hexagonal rods by immersion method

• Published in: Advanced Materials Research
• Main Author: Azlinda A.; Khusaimi Z.; Husairi F.S.; Nasruddin I.; Abdullah S.; Rusop M.
• Format: Conference paper
• Language: English
• Published: 2012
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84869479022&doi=10.4028%2fwww.scientific.net%2fAMR.576.353&partnerID=40&md5=65b8ea8aceee76c4bd56104f3fcb233b

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. © (2012) Trans Tech Publications, Switzerland.