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http://dx.doi.org/10.5762/KAIS.2015.16.2.1555

Synthesis of Al-Doped ZnO by Microwave Assisted Hydrothermal Method and its Optical Property  

Hyun, Mi-Ho (Department of Engineering Chemistry, Chungbuk National University)
Kang, Kuk-Hyoun (Department of Engineering Chemistry, Chungbuk National University)
Lee, Dong-Kyu (Department of Engineering Chemistry, Chungbuk National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.2, 2015 , pp. 1555-1562 More about this Journal
Abstract
Metal oxide semiconductors have been applied in several areas, such as solar cells, sensor, optical elements and displays, due to the high surface area, unique electrical and optical characteristics. Zinc oxide among the metal oxide has excellent physicochemical properties. Zinc oxide is a n-type semiconductor with a wide direct transition band gap of 3.37 eV at room temperature and large exciton binding energy of 60 meV. Cation-doped zinc oxide studies were conducted to complement the electrical and optical characteristics. In this paper, Al-doped ZnO was synthesized by hydrothermal synthesis using microwaves. ZnO was synthesized by adjusting the precursor ratio and using different dopants. The optimal ZnO synthesis conditions for crystal shape and optical properties were determined. The optical properties of aluminum doped zinc oxide were then examined by SEM, XRD, PL, UV-vis absorbance spectrum, and EDS.
Keywords
Al-doping; Microwave; Optical property; ZnO;
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