Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor

Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor

In this thesis, a high sensitivity and accurate gas sensor with operating temperature at room temperature has been successfully developed by using ZnO nanorods. A series of parametric studies via hydrothermal and PECVD have been carried out in order to synthesis a high dense and high aspect ratio of...

Full description

Saved in:
Bibliographic Details
Main Author: Abd Wahid, Khairul Anuar
Format: Thesis
Language:English
Published: 2015
Subjects:
TJ1-1570 Mechanical engineering and machinery
Online Access:http://eprints.usm.my/40950/1/KHAIRUL_ANUAR_ABD_WAHID_24_pages.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
id my-usm-ep.40950
record_format uketd_dc
spelling my-usm-ep.409502018-07-09T04:42:02Z Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor 2015 Abd Wahid, Khairul Anuar TJ1-1570 Mechanical engineering and machinery In this thesis, a high sensitivity and accurate gas sensor with operating temperature at room temperature has been successfully developed by using ZnO nanorods. A series of parametric studies via hydrothermal and PECVD have been carried out in order to synthesis a high dense and high aspect ratio of ZnO nanorods. It has been demonstrated that a high-density of ZnO nanorods with aspect ratio 15:1 can be successfully synthesized at an annealing temperature of 100oC and 3 hours growth duration for via hydrothermal. Meanwhile for PECVD, a high aspect ratio of 12:1 ZnO nanorods successfully synthesized at 4nm gold (Au) catalyst with chamber pressure of 700mTorr. SEM and AFM analyses showed that the formation of ZnO nanorods via hydrothermal is significantly influenced by the seeds particle morphology while for PECVD, the Au nanoparticle size and the proper ratio of vapors components are the major parameter affecting the ZnO nanorods growth. The grown ZnO from both samples is of the wurtzite crystal type based on raman shift E2(high) of 436cm-1.An electrical characteristics via four point probles been conducted and the results showed that the resistivity of the ZnO grown via hydrothermal and PECVD are 4.47×10−3Ω. 2015 Thesis http://eprints.usm.my/40950/ http://eprints.usm.my/40950/1/KHAIRUL_ANUAR_ABD_WAHID_24_pages.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Mekanik
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic TJ1-1570 Mechanical engineering and machinery
spellingShingle TJ1-1570 Mechanical engineering and machinery
Abd Wahid, Khairul Anuar
Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor
description In this thesis, a high sensitivity and accurate gas sensor with operating temperature at room temperature has been successfully developed by using ZnO nanorods. A series of parametric studies via hydrothermal and PECVD have been carried out in order to synthesis a high dense and high aspect ratio of ZnO nanorods. It has been demonstrated that a high-density of ZnO nanorods with aspect ratio 15:1 can be successfully synthesized at an annealing temperature of 100oC and 3 hours growth duration for via hydrothermal. Meanwhile for PECVD, a high aspect ratio of 12:1 ZnO nanorods successfully synthesized at 4nm gold (Au) catalyst with chamber pressure of 700mTorr. SEM and AFM analyses showed that the formation of ZnO nanorods via hydrothermal is significantly influenced by the seeds particle morphology while for PECVD, the Au nanoparticle size and the proper ratio of vapors components are the major parameter affecting the ZnO nanorods growth. The grown ZnO from both samples is of the wurtzite crystal type based on raman shift E2(high) of 436cm-1.An electrical characteristics via four point probles been conducted and the results showed that the resistivity of the ZnO grown via hydrothermal and PECVD are 4.47×10−3Ω.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Abd Wahid, Khairul Anuar
author_facet Abd Wahid, Khairul Anuar
author_sort Abd Wahid, Khairul Anuar
title Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor
title_short Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor
title_full Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor
title_fullStr Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor
title_full_unstemmed Synthesis And Application Of Zno Nanorods For Oxygen Gas Sensor
title_sort synthesis and application of zno nanorods for oxygen gas sensor
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Kejuruteraan Mekanik
publishDate 2015
url http://eprints.usm.my/40950/1/KHAIRUL_ANUAR_ABD_WAHID_24_pages.pdf
_version_ 1747820846622179328

Similar Items