STRACTURAL AND OPTICAL CHARACTERIZATION OF SENSITIZED ZnO POWDER BY CHEMICAL REACTION METHOD
Abstract
- Prepared ZnO powder has been successfully synthesized by chemical reaction method. The calcination of ZnO powder has been characterized by number of techniques such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Ultraviolet and Visible spectrophotometry (UV-Vis) at room temperature. The structural characteristic was examined using XRD and the surface morphology of ZnO powder was analyzed by Scanning Electron Microscopy (SEM). XRD analysis revealed that the sample crystallite in polycrystalline nature with wurtzite hexagonal structure and average crystallite was 30.50 nm at 500 °C. The microstructural of SEM result was observed that hexagonal shape and granular in nature. The absorption spectrum indicated that the energy band gap of ZnO powder. The optical property of the ZnO powder was determined by UV-Vis absorption spectrophotometry. The energy band gap of sensitized powder was examined to be equal to 3 eV. Taking into account the results obtained, ZnO powder has been reported for photoanode of solar cell applications.
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Year
- 2020
Author
-
Moht Moht Lwin
Subject
- Physics
Publisher
- Myanmar Academy of Arts and Science (MAAS)