Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications

Zinc oxide (zno) is applications in high efficiency electronic and optoelectronic devices. The present study follows two objectives. First, synthesis of vertical and inclined well-aligned zno nanorods (nrs) on a nylon substrate via the hydrothermal method, and subsequently fabricate the highly fl...

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主要作者: M. Mohammad, Sabah
格式: Thesis
語言:英语
出版: 2017
主題:
在線閱讀:http://eprints.usm.my/62882/
Abstract Abstract here
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author M. Mohammad, Sabah
author_facet M. Mohammad, Sabah
author_sort M. Mohammad, Sabah
description Zinc oxide (zno) is applications in high efficiency electronic and optoelectronic devices. The present study follows two objectives. First, synthesis of vertical and inclined well-aligned zno nanorods (nrs) on a nylon substrate via the hydrothermal method, and subsequently fabricate the highly flexible low-cost ultraviolet photodiodes (uv-pds) and hydrogen (h2) gas sensor devices. Pre-heat treatment of zno seeds/substrate at 180°c with varying duration (0.5-6 h) shows important changes. Morphological observations revealed the formation of aligned hexagonal-like shaped nanorods when the diameter, length (aspect ratio), surface area and density increase with increasing heat treatment time. The x-ray diffraction analysis confirms the formation of wurtzite zno phase with a preferred orientation along (002) direction and enhanced crystallinity. Photoluminescence spectra exhibited a strong and sharp ultraviolet (uv) near band edge emission peak that was higher than that of the broad peak. Temperature and duration to produce uniform zno seeds was 180°c for 3 h.
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spelling usm-628822025-10-07T00:21:01Z http://eprints.usm.my/62882/ Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications M. Mohammad, Sabah QC1 Physics (General) Zinc oxide (zno) is applications in high efficiency electronic and optoelectronic devices. The present study follows two objectives. First, synthesis of vertical and inclined well-aligned zno nanorods (nrs) on a nylon substrate via the hydrothermal method, and subsequently fabricate the highly flexible low-cost ultraviolet photodiodes (uv-pds) and hydrogen (h2) gas sensor devices. Pre-heat treatment of zno seeds/substrate at 180°c with varying duration (0.5-6 h) shows important changes. Morphological observations revealed the formation of aligned hexagonal-like shaped nanorods when the diameter, length (aspect ratio), surface area and density increase with increasing heat treatment time. The x-ray diffraction analysis confirms the formation of wurtzite zno phase with a preferred orientation along (002) direction and enhanced crystallinity. Photoluminescence spectra exhibited a strong and sharp ultraviolet (uv) near band edge emission peak that was higher than that of the broad peak. Temperature and duration to produce uniform zno seeds was 180°c for 3 h. 2017-03 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/62882/1/1-%20PHS18010146.pdf M. Mohammad, Sabah (2017) Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications. PhD thesis, Perpustakaan Hamzah Sendut.
spellingShingle QC1 Physics (General)
M. Mohammad, Sabah
Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications
thesis_level PhD
title Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications
title_full Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications
title_fullStr Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications
title_full_unstemmed Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications
title_short Growth Of Zno Nanorods Using Hydrothermal And Modified Chemical Bath Deposition For Device Applications
title_sort growth of zno nanorods using hydrothermal and modified chemical bath deposition for device applications
topic QC1 Physics (General)
url http://eprints.usm.my/62882/
work_keys_str_mv AT mmohammadsabah growthofznonanorodsusinghydrothermalandmodifiedchemicalbathdepositionfordeviceapplications