Effect of EDX accelerating voltage on ZnO thin film doped with sodium / Benedict Wen Cheun Au ... [et al.]

In recent years, owing to its unique properties, ZnO has been researched extensively for a wide range of applications including sensors, transistors and solar cells. In this work, ZnO thin film doped with sodium (ZnO:Na) was characterized using Field Emission-Scanning Electron Microscopy (FESEM) and...

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Main Authors: Wen, Benedict Cheun Au (Author), Kah, Yoong Chan (Author), Siow, Woon Ng (Author), Fong, Kwong Yam (Author)
Format: Book
Published: Universiti Teknologi MARA Cawangan Pahang, 2018.
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Summary:In recent years, owing to its unique properties, ZnO has been researched extensively for a wide range of applications including sensors, transistors and solar cells. In this work, ZnO thin film doped with sodium (ZnO:Na) was characterized using Field Emission-Scanning Electron Microscopy (FESEM) and Energy Dispersive X-Ray Spectroscopy (EDX). The FESEM image of the ZnO:Na film implies crystal growth at different orientations. The surface composition of the ZnO :Na film with approximately 350 nm thickness was investigated by EDX as a function of accelerating voltage ranging from 5 kV to 15 kV. The EDX spectra revealed that 7 kV is the most appropriate accelerating voltage for extracting elemental composition of the ZnO:Na films, which exclude the detection of the underlying substrate elements. A rectifying structure made up of P-type ZnO :Na film and N-type tin doped indium oxide (ITO) film showed typical rectifying characteristic.
Item Description:https://ir.uitm.edu.my/id/eprint/31335/1/31335.pdf