Application of chitosan biopolymer as a sensing material

The chitosan solution has been succesfully deposited on the silicon wafer using sol-gel method to fabricate the chitosan thin film sensors. The effect of different annealing temperature and annealing time to their electrical characteristics were studied without and under light illumination. The curr...

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Main Author:	Roshida, Mustaffa
Format:	Thesis
Language:	English
Subjects:	Chitosan Sensor Sensing materials Chitosan thin films
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/1/p.%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/2/Full%20Text.pdf
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id	my-unimap-12849
record_format	uketd_dc
spelling	my-unimap-128492011-06-28T12:09:04Z Application of chitosan biopolymer as a sensing material Roshida, Mustaffa The chitosan solution has been succesfully deposited on the silicon wafer using sol-gel method to fabricate the chitosan thin film sensors. The effect of different annealing temperature and annealing time to their electrical characteristics were studied without and under light illumination. The current-voltage (I-V) characteristics showed that sensitivity of chitosan thin film sensors depend on the annealing temperature and annealing time. For the annealing temperature effect, it was found that the film annealed at 190oC has the highest photocurrent compared to the others. While for the annealing time effect, it was shown that the higher annealing time, the higher photocurrent. The changes of photocurrent are related to the different microstructure of chitosan thin film sensors. Although, the photocurrent values of the films illuminated with light exhibit the fluctuation to the photocurrent values without light illumination. Overall the chitosan thin films are sensitive to the visible and UV light. Therefore, they have a good potential as thin film light sensors. Universiti Malaysia Perlis 2009 Thesis en http://dspace.unimap.edu.my/123456789/12849 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/1/p.%201-24.pdf a9c82df758bf9cb4253dc2a1a32c9508 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/2/Full%20Text.pdf 425adf56e0519e49902b222ca6a87e00 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/3/license.txt 3061ab89fa54c953b1bcd4d7b3ffc9b3 Chitosan Sensor Sensing materials Chitosan thin films School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
topic	Chitosan Sensor Sensing materials Chitosan thin films
spellingShingle	Chitosan Sensor Sensing materials Chitosan thin films Roshida, Mustaffa Application of chitosan biopolymer as a sensing material
description	The chitosan solution has been succesfully deposited on the silicon wafer using sol-gel method to fabricate the chitosan thin film sensors. The effect of different annealing temperature and annealing time to their electrical characteristics were studied without and under light illumination. The current-voltage (I-V) characteristics showed that sensitivity of chitosan thin film sensors depend on the annealing temperature and annealing time. For the annealing temperature effect, it was found that the film annealed at 190oC has the highest photocurrent compared to the others. While for the annealing time effect, it was shown that the higher annealing time, the higher photocurrent. The changes of photocurrent are related to the different microstructure of chitosan thin film sensors. Although, the photocurrent values of the films illuminated with light exhibit the fluctuation to the photocurrent values without light illumination. Overall the chitosan thin films are sensitive to the visible and UV light. Therefore, they have a good potential as thin film light sensors.
format	Thesis
author	Roshida, Mustaffa
author_facet	Roshida, Mustaffa
author_sort	Roshida, Mustaffa
title	Application of chitosan biopolymer as a sensing material
title_short	Application of chitosan biopolymer as a sensing material
title_full	Application of chitosan biopolymer as a sensing material
title_fullStr	Application of chitosan biopolymer as a sensing material
title_full_unstemmed	Application of chitosan biopolymer as a sensing material
title_sort	application of chitosan biopolymer as a sensing material
granting_institution	Universiti Malaysia Perlis
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/1/p.%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12849/2/Full%20Text.pdf
_version_	1747836762170851328

Application of chitosan biopolymer as a sensing material

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