20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

The Effect of Calcination Temperature on the Properties of the NiO Films

21 May 2015, 13:00
3h 30m
Board: MNA-18
Poster presentation Material Physics, Nanoscale Physics and Nanotechnology Poster-3

Speaker

Mr ADULPHAN PIMSAWAT (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

Description

A NiO film was prepared by heating solution made of nickel acetate dissolved in acetic acid which were drop-casted on a fluorine-doped tin oxide (FTO) substrate. This simple preparation technique has rarely been investigated in the open literatures. The effect of heating temperatures from 250 ${}^{\circ}$C to 500 ${}^{\circ}$C on structural, morphological, electrical and capacitive properties of the films were evaluated. With the increasing temperatures, there were improvement in the crystallinity of NiO and enlargement of NiO's crystallite size, moreover, the films' resistance increased whilst their capacitance values only slightly decreased. The optimum temperature suitable for preparing the NiO film was 300 ${}^{\circ}$C, where the highest capacitance of 150$-$200 F/g were obtain for a symmetrical capacitor made from NiO electrode and 6 M KOH electrolyte solution.

Primary author

Mr ADULPHAN PIMSAWAT (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

Co-authors

Dr Apishok Tangtrakarn (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002) Sujittra Daengsakul (Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

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