Investigation Of Sodium And Potassium Doped P-Type Zinc Oxide Films


Au, Benedict Wen Cheun (2017) Investigation Of Sodium And Potassium Doped P-Type Zinc Oxide Films. Masters thesis, Multimedia University.

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In this thesis, P-type zinc oxide (ZnO) films doped with sodium (NZO) and potassium (KZO) were fabricated on glass substrates using the sol-gel spin-coating technique. The P-type dopants were varied between 0 at.% and 25 at.%. A comprehensive correlation of surface morphology, structural, optical and electrical properties with increasing Na and K doping concentration, respectively, over a wide range of concentration were studied and elucidated by a variety of measurement techniques. In terms of surface morphology of the films, the doping concentration of P-type dopants Na and K affected the surface of the ZnO films where increasing granular size was observed as the doping concentrations were increased from 0 at.% to 25 at.% by atomic force microscopy (AFM) measurements. X-ray diffraction (XRD) spectra revealed increasing intensity of the (1 0 0) and (1 0 1) peaks while decreasing (0 0 2) peak intensity with increasing doping concentration. The stress within the films extracted based on XRD data is due to the incorporation of dopants and subsequently defects in the films.

Item Type: Thesis (Masters)
Additional Information: Call No.: TK7871.85 .A99 2017
Uncontrolled Keywords: Semiconductor doping
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 25 May 2018 08:59
Last Modified: 25 May 2018 08:59


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