Highly porous NiO nanoflower-based humidity sensor grown on seedless glass substrate via one-step simplistic immersion method

Norfarariyanti Parimon and M. H. Mamat and M. K. Ahmad and I. B. Shameem Banu and M. Rusop (2019) Highly porous NiO nanoflower-based humidity sensor grown on seedless glass substrate via one-step simplistic immersion method. International Journal of Engineering and Advanced Technology (IJEAT), 9. pp. 5718-5722. ISSN 2249-8958

	Text Highly porous NiO nanoflower-based humidity sensor grown on seedless glass substrate via one-step simplistic immersion method_ABSTRACT.pdf Download (85kB)
	Text Highly porous NiO nanoflower-based humidity sensor grown on seedless glass substrate via one-step simplistic immersion method_compressed.pdf Restricted to Registered users only Download (298kB)

URL: https://www.ijeat.org/wp-content/uploads/papers/v9...

Abstract

A highly porous nickel oxide (NiO) nanoflower was deposited directly onto glass substrates by the simplistic immersion method. The nanostructural property of the NiO was studied by X-ray diffraction pattern and obtained high crystal quality after annealing at 500 °Ϲ with an average crystallite size of 15.5 nm. The optical characterization was measured by ultraviolet-visible spectroscopy, with an average transmittance of 58 %. The value of 3.63 eV was estimated and confirmed as NiO bandgap energy. The current-voltage measurement result indicates that the NiO nanoflower has good electrical properties with resistance, resistivity, and conductivity value of 2.31 MΩ, 2.12 Ω.cm, and 4.71 × 10-1 S.cm-1, respectively. The NiO is capable of performing satisfactorily as humidity sensor with a sensitivity of 138 with the response and recovery time were estimated at 389 s and 172 s, respectively. Besides, this sensor has stability at a humidity level of 40-90% relative humidity.

Item Type:	Article
Keyword:	Glass substrate , Highly porous , Humidity sensor , Immersion method , NiO nanoflower
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry > QD901-999 Crystallography
Department:	FACULTY > Faculty of Engineering
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	22 Nov 2021 07:39
Last Modified:	22 Nov 2021 07:39
URI:	https://eprints.ums.edu.my/id/eprint/30987

Actions (login required)

View Item