Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications

Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications

The objectives of this study are to grow and characterize the structural, optical, and electrical properties of aligned ZnO nanorods, and to develop ultraviolet (UV) photodetectors using these ZnO nanorod arrays grown with optimized growth parameters. The study employed two different substrates for...

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Main Author: Shabanniarami, Reza
Format: Thesis
Language:English
Published: 2013
Subjects:
QC1 Physics (General)
Online Access:http://eprints.usm.my/46305/1/Reza%20Shabanniarami24.pdf
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spelling my-usm-ep.463052020-02-21T02:34:38Z Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications 2013-12 Shabanniarami, Reza QC1 Physics (General) The objectives of this study are to grow and characterize the structural, optical, and electrical properties of aligned ZnO nanorods, and to develop ultraviolet (UV) photodetectors using these ZnO nanorod arrays grown with optimized growth parameters. The study employed two different substrates for growing ZnO nanorod arrays; first, flexible polyethylene naphthalate (PEN) seeded ZnO and second, porous silicon (PS) seeded ZnO. Well-aligned ZnO nanorod arrays were grown on flexible PEN substrates at a low temperature by using the chemical bath deposition (CBD). The control of the diameter, length, density, and optical and structural properties of the ZnO nanorod arrays were systematically investigated by modifying the growth parameters, including the precursor concentration and growth duration. Vertically aligned ZnO nanorod arrays grown using a 0.050 M precursor concentration and 5 h growth duration had diameters ranging from 10 nm to 40 nm and exhibited the sharpest and most intense UV peak in the room temperature photoluminescence (PL) results compared with other samples. Next, high quality ZnO nanorod arrays were synthesized through the optimization of precursor concentration and growth duration by using CBD method on PS substrates, which were prepared via the photo electrochemical etching (PECE) method. The aligned ZnO nanorods grew perpendicular to the PS substrates and had average diameters and lengths ranging from 13 nm to 69 nm and from 85 nm to 208 nm, respectively. 2013-12 Thesis http://eprints.usm.my/46305/ http://eprints.usm.my/46305/1/Reza%20Shabanniarami24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Fizik
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic QC1 Physics (General)
spellingShingle QC1 Physics (General)
Shabanniarami, Reza
Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications
description The objectives of this study are to grow and characterize the structural, optical, and electrical properties of aligned ZnO nanorods, and to develop ultraviolet (UV) photodetectors using these ZnO nanorod arrays grown with optimized growth parameters. The study employed two different substrates for growing ZnO nanorod arrays; first, flexible polyethylene naphthalate (PEN) seeded ZnO and second, porous silicon (PS) seeded ZnO. Well-aligned ZnO nanorod arrays were grown on flexible PEN substrates at a low temperature by using the chemical bath deposition (CBD). The control of the diameter, length, density, and optical and structural properties of the ZnO nanorod arrays were systematically investigated by modifying the growth parameters, including the precursor concentration and growth duration. Vertically aligned ZnO nanorod arrays grown using a 0.050 M precursor concentration and 5 h growth duration had diameters ranging from 10 nm to 40 nm and exhibited the sharpest and most intense UV peak in the room temperature photoluminescence (PL) results compared with other samples. Next, high quality ZnO nanorod arrays were synthesized through the optimization of precursor concentration and growth duration by using CBD method on PS substrates, which were prepared via the photo electrochemical etching (PECE) method. The aligned ZnO nanorods grew perpendicular to the PS substrates and had average diameters and lengths ranging from 13 nm to 69 nm and from 85 nm to 208 nm, respectively.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Shabanniarami, Reza
author_facet Shabanniarami, Reza
author_sort Shabanniarami, Reza
title Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications
title_short Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications
title_full Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications
title_fullStr Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications
title_full_unstemmed Growth And Characterization Of Vertically Aligned Zno Nanorods Synthesized By Chemical Bath Deposition For Uv Photodetector Applications
title_sort growth and characterization of vertically aligned zno nanorods synthesized by chemical bath deposition for uv photodetector applications
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Sains Fizik
publishDate 2013
url http://eprints.usm.my/46305/1/Reza%20Shabanniarami24.pdf
_version_ 1747821649271455744

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