Relative humidity sensing using a PMMA doped Agarose gel microfiber

Humidity sensors rely on humidity-induced refractive index change in the sensing material despite the sensor configuration. Polymer-based microwires can absorb water vapor molecules and detect humidity changes without the need of further coating. However, the sensitivity-simplicity trade-off is stil...

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Main Authors:	Irawati, Ninik, A. Rahman, Husna, Yasin, Moh, Askari, Shadi, Hamida, Belal Ahmed, Ahmad, Harith, W. Harun, Sulaiman
Format:	Article
Language:	English English English
Published:	The Optical Society 2017
Subjects:	TK452 Electric apparatus and materials. Electric circuits. Electric networks
Online Access:	http://irep.iium.edu.my/58263/ http://irep.iium.edu.my/58263/ http://irep.iium.edu.my/58263/ http://irep.iium.edu.my/58263/1/58263_Relative%20humidity%20sensing.pdf http://irep.iium.edu.my/58263/2/58263_Relative%20humidity%20sensing_SCOPUS.pdf http://irep.iium.edu.my/58263/3/58263_Relative%20humidity%20sensing_WOS.pdf

id	iium-58263
recordtype	eprints
spelling	iium-582632017-10-31T04:09:32Z http://irep.iium.edu.my/58263/ Relative humidity sensing using a PMMA doped Agarose gel microfiber Irawati, Ninik A. Rahman, Husna Yasin, Moh Askari, Shadi Hamida, Belal Ahmed Ahmad, Harith W. Harun, Sulaiman TK452 Electric apparatus and materials. Electric circuits. Electric networks Humidity sensors rely on humidity-induced refractive index change in the sensing material despite the sensor configuration. Polymer-based microwires can absorb water vapor molecules and detect humidity changes without the need of further coating. However, the sensitivity-simplicity trade-off is still a challenge. Sophisticated coating methods, complex resonating structures and nano-structured films are reported as methods to enhance the device sensitivity. A simple technique, to build a high sensitivity RH sensor based on an agarose-doped Poly Methyl Methacrylate (PMMA) sensor head, is demonstrated. The waist diameter and uniform length of the PMMA doped agarose gel microfiber were measured to be 6 μm and 10 mm, respectively. The sensor can achieve power variation of up to 2.9μW in a wide relative humidity range (50-80%), and display linear response with a correlation coefficient of 98.29 %, sensitivity of 0.421 dB/%RH and resolution of 0.431%RH. This agarose-based optical sensor provides a beneficial complement to the existing electrical ones, and will promote the employment of agarose in chemical sensing techniques. The Optical Society 2017-09-15 Article PeerReviewed application/pdf en http://irep.iium.edu.my/58263/1/58263_Relative%20humidity%20sensing.pdf application/pdf en http://irep.iium.edu.my/58263/2/58263_Relative%20humidity%20sensing_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/58263/3/58263_Relative%20humidity%20sensing_WOS.pdf Irawati, Ninik and A. Rahman, Husna and Yasin, Moh and Askari, Shadi and Hamida, Belal Ahmed and Ahmad, Harith and W. Harun, Sulaiman (2017) Relative humidity sensing using a PMMA doped Agarose gel microfiber. Journal of Lightwave Technology, 35 (18). pp. 3940-3944. ISSN 0733-8724 E-ISSN 1558-2213 https://www.osapublishing.org/jlt/abstract.cfm?uri=jlt-35-18-3940 10.1109/JLT.2017.2698044
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TK452 Electric apparatus and materials. Electric circuits. Electric networks
spellingShingle	TK452 Electric apparatus and materials. Electric circuits. Electric networks Irawati, Ninik A. Rahman, Husna Yasin, Moh Askari, Shadi Hamida, Belal Ahmed Ahmad, Harith W. Harun, Sulaiman Relative humidity sensing using a PMMA doped Agarose gel microfiber
description	Humidity sensors rely on humidity-induced refractive index change in the sensing material despite the sensor configuration. Polymer-based microwires can absorb water vapor molecules and detect humidity changes without the need of further coating. However, the sensitivity-simplicity trade-off is still a challenge. Sophisticated coating methods, complex resonating structures and nano-structured films are reported as methods to enhance the device sensitivity. A simple technique, to build a high sensitivity RH sensor based on an agarose-doped Poly Methyl Methacrylate (PMMA) sensor head, is demonstrated. The waist diameter and uniform length of the PMMA doped agarose gel microfiber were measured to be 6 μm and 10 mm, respectively. The sensor can achieve power variation of up to 2.9μW in a wide relative humidity range (50-80%), and display linear response with a correlation coefficient of 98.29 %, sensitivity of 0.421 dB/%RH and resolution of 0.431%RH. This agarose-based optical sensor provides a beneficial complement to the existing electrical ones, and will promote the employment of agarose in chemical sensing techniques.
format	Article
author	Irawati, Ninik A. Rahman, Husna Yasin, Moh Askari, Shadi Hamida, Belal Ahmed Ahmad, Harith W. Harun, Sulaiman
author_facet	Irawati, Ninik A. Rahman, Husna Yasin, Moh Askari, Shadi Hamida, Belal Ahmed Ahmad, Harith W. Harun, Sulaiman
author_sort	Irawati, Ninik
title	Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_short	Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_full	Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_fullStr	Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_full_unstemmed	Relative humidity sensing using a PMMA doped Agarose gel microfiber
title_sort	relative humidity sensing using a pmma doped agarose gel microfiber
publisher	The Optical Society
publishDate	2017
url	http://irep.iium.edu.my/58263/ http://irep.iium.edu.my/58263/ http://irep.iium.edu.my/58263/ http://irep.iium.edu.my/58263/1/58263_Relative%20humidity%20sensing.pdf http://irep.iium.edu.my/58263/2/58263_Relative%20humidity%20sensing_SCOPUS.pdf http://irep.iium.edu.my/58263/3/58263_Relative%20humidity%20sensing_WOS.pdf
first_indexed	2023-09-18T21:22:22Z
last_indexed	2023-09-18T21:22:22Z
_version_	1777411966458920960

Relative humidity sensing using a PMMA doped Agarose gel microfiber

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