Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO

A relative humidity sensor operating on intensity modulation principle is proposed and demonstrated using a tapered plastic optical fiber (POF) that is coated with seeded Al-doped ZnO nanostructures. The POF was tapered by mechanical etching and then coated with seeded Al-doped ZnO nanostructures us...

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Main Authors:	Harith, Z., Batumalay, M., Irawati, N., Harun, S.W., Arof, H., Ahmad, H.
Format:	Article
Published:	Elsevier 2017
Subjects:	QC Physics TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://dx.doi.org/10.1016/j.ijleo.2017.06.123 http://dx.doi.org/10.1016/j.ijleo.2017.06.123

id	um-17636
recordtype	eprints
spelling	um-176362017-11-13T07:37:34Z Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO Harith, Z. Batumalay, M. Irawati, N. Harun, S.W. Arof, H. Ahmad, H. QC Physics TK Electrical engineering. Electronics Nuclear engineering A relative humidity sensor operating on intensity modulation principle is proposed and demonstrated using a tapered plastic optical fiber (POF) that is coated with seeded Al-doped ZnO nanostructures. The POF was tapered by mechanical etching and then coated with seeded Al-doped ZnO nanostructures using sol-gel immersion method with different mol% of Al nitrate that acted as dopant. It was found that 1 mol% of Al nitrate produced the best performance compared to other doping concentrations. Then the performances of sensors fabricated using seeded and non-seeded coating methods with 1 mol% of Al-doped ZnO were compared and investigated. The sensor developed using seeded coating method showed a better sensitivity of 0.0386 mV/%, as opposed to the other sensor which registered a sensitivity of 0.0148 mV/%. The results show that tapered POF with Al-doped ZnO nanostructures deposited using seeded coating method is excellent for detecting changes in relative humidity. Elsevier 2017 Article PeerReviewed http://dx.doi.org/10.1016/j.ijleo.2017.06.123 Harith, Z.; Batumalay, M.; Irawati, N.; Harun, S.W.; Arof, H.; Ahmad, H. (2017) Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO. Optik <http://eprints.um.edu.my/view/publication/Optik.html>, 144. pp. 257-262. ISSN 0030-4026 http://eprints.um.edu.my/17636/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
topic	QC Physics TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	QC Physics TK Electrical engineering. Electronics Nuclear engineering Harith, Z. Batumalay, M. Irawati, N. Harun, S.W. Arof, H. Ahmad, H. Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
description	A relative humidity sensor operating on intensity modulation principle is proposed and demonstrated using a tapered plastic optical fiber (POF) that is coated with seeded Al-doped ZnO nanostructures. The POF was tapered by mechanical etching and then coated with seeded Al-doped ZnO nanostructures using sol-gel immersion method with different mol% of Al nitrate that acted as dopant. It was found that 1 mol% of Al nitrate produced the best performance compared to other doping concentrations. Then the performances of sensors fabricated using seeded and non-seeded coating methods with 1 mol% of Al-doped ZnO were compared and investigated. The sensor developed using seeded coating method showed a better sensitivity of 0.0386 mV/%, as opposed to the other sensor which registered a sensitivity of 0.0148 mV/%. The results show that tapered POF with Al-doped ZnO nanostructures deposited using seeded coating method is excellent for detecting changes in relative humidity.
format	Article
author	Harith, Z. Batumalay, M. Irawati, N. Harun, S.W. Arof, H. Ahmad, H.
author_facet	Harith, Z. Batumalay, M. Irawati, N. Harun, S.W. Arof, H. Ahmad, H.
author_sort	Harith, Z.
title	Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
title_short	Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
title_full	Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
title_fullStr	Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
title_full_unstemmed	Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
title_sort	relative humidity sensor employing tapered plastic optical fiber coated with seeded al-doped zno
publisher	Elsevier
publishDate	2017
url	http://dx.doi.org/10.1016/j.ijleo.2017.06.123 http://dx.doi.org/10.1016/j.ijleo.2017.06.123
first_indexed	2018-09-06T06:43:38Z
last_indexed	2018-09-06T06:43:38Z
_version_	1610839457358938112

Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO

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