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Resistive humidity sensor made from palm-oil-derived graphene film

Graphene is known to be highly conductive and sensitive to adsorbed molecules thus make it suitable for sensor application. The astonishing properties of graphene attracted the attention to develop ultra-high sensitive sensor with very fast response and recovery time. In this project, a resistive hu...

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Main Author: Wai, Yin Ling
Format: Thesis
Language:English
Published: 2015
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/53966/1/WaiYinLingMFKE2015.pdf
http://eprints.utm.my/id/eprint/53966/
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spelling my.utm.539662020-10-08T05:08:24Z http://eprints.utm.my/id/eprint/53966/ Resistive humidity sensor made from palm-oil-derived graphene film Wai, Yin Ling TK Electrical engineering. Electronics Nuclear engineering Graphene is known to be highly conductive and sensitive to adsorbed molecules thus make it suitable for sensor application. The astonishing properties of graphene attracted the attention to develop ultra-high sensitive sensor with very fast response and recovery time. In this project, a resistive humidity sensor which utilizes graphene as the sensing area has been fabricated and characterized. Different types of graphene samples (i.e. single-layer graphene on copper substrate, single-layer graphene on nickel substrate synthesized using thermal CVD, multi-layers graphene on nickel substrate synthesized using thermal CVD) were used in this project to further investigate the effect of crystallinity of the graphene on its sensing behavior. In order to fabricate the sensor device, the 2-terminals and 4-terminals electrodes configuration was chosen. Sensor fabrication process includes photolithography, copper etching and graphene transfer process. Current-voltage measurement of the fabricated is performed at different relative humidity inside dry box. The result of the resistance of the graphene sample responding towards the change of relative humidity shows an inverse exponential association. Measurement result for different type of graphene are compared to assess the relationship between the crystallinity and sensor performance. 2015-06 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/53966/1/WaiYinLingMFKE2015.pdf Wai, Yin Ling (2015) Resistive humidity sensor made from palm-oil-derived graphene film. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:85451
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Wai, Yin Ling
Resistive humidity sensor made from palm-oil-derived graphene film
description Graphene is known to be highly conductive and sensitive to adsorbed molecules thus make it suitable for sensor application. The astonishing properties of graphene attracted the attention to develop ultra-high sensitive sensor with very fast response and recovery time. In this project, a resistive humidity sensor which utilizes graphene as the sensing area has been fabricated and characterized. Different types of graphene samples (i.e. single-layer graphene on copper substrate, single-layer graphene on nickel substrate synthesized using thermal CVD, multi-layers graphene on nickel substrate synthesized using thermal CVD) were used in this project to further investigate the effect of crystallinity of the graphene on its sensing behavior. In order to fabricate the sensor device, the 2-terminals and 4-terminals electrodes configuration was chosen. Sensor fabrication process includes photolithography, copper etching and graphene transfer process. Current-voltage measurement of the fabricated is performed at different relative humidity inside dry box. The result of the resistance of the graphene sample responding towards the change of relative humidity shows an inverse exponential association. Measurement result for different type of graphene are compared to assess the relationship between the crystallinity and sensor performance.
format Thesis
author Wai, Yin Ling
author_facet Wai, Yin Ling
author_sort Wai, Yin Ling
title Resistive humidity sensor made from palm-oil-derived graphene film
title_short Resistive humidity sensor made from palm-oil-derived graphene film
title_full Resistive humidity sensor made from palm-oil-derived graphene film
title_fullStr Resistive humidity sensor made from palm-oil-derived graphene film
title_full_unstemmed Resistive humidity sensor made from palm-oil-derived graphene film
title_sort resistive humidity sensor made from palm-oil-derived graphene film
publishDate 2015
url http://eprints.utm.my/id/eprint/53966/1/WaiYinLingMFKE2015.pdf
http://eprints.utm.my/id/eprint/53966/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:85451
_version_ 1681489453028212736
score 13.211869

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