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Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications

This study used a rapid and simple microwave-assisted synthesis method to grow ZnO nanoneedle arrays on the silicon substrate with the ZnO seed layer. The effects of reaction temperature and time on the lengths of ZnO nanoneedle arrays were investigated. The appropriate temperature programming step...

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Autores principales: Chang, Tung-Hao, Chang, Yu-Cheng, Lee, Chung-I, Lin, Ying-Ru, Ko, Fu-Hsiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696083/
https://www.ncbi.nlm.nih.gov/pubmed/36432278
http://dx.doi.org/10.3390/nano12223989
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author Chang, Tung-Hao
Chang, Yu-Cheng
Lee, Chung-I
Lin, Ying-Ru
Ko, Fu-Hsiang
author_facet Chang, Tung-Hao
Chang, Yu-Cheng
Lee, Chung-I
Lin, Ying-Ru
Ko, Fu-Hsiang
author_sort Chang, Tung-Hao
collection PubMed
description This study used a rapid and simple microwave-assisted synthesis method to grow ZnO nanoneedle arrays on the silicon substrate with the ZnO seed layer. The effects of reaction temperature and time on the lengths of ZnO nanoneedle arrays were investigated. The appropriate temperature programming step can grow the longer ZnO nanoneedle arrays at the same reaction time (25 min), which is 2.08 times higher than without the temperature programming step. The geometry of the ZnO nanoneedle arrays features a gradual decrease from the Si substrate to the surface, which provides an excellent progressive refractive index between Si and air, resulting in excellent antireflection properties over an extensive wavelength range. In addition, the ZnO nanoneedle arrays exhibit a suitable structure for uniform deposition of Ag nanoparticles, which can provide three-dimensional hot spots and surface active sites, resulting in higher surface-enhanced Raman scattering (SERS) enhancement, high uniformity, high reusability, and low detection limit for R6G molecule. The ZnO/Ag nanoneedle arrays can also reveal a superior SERS-active substrate detecting amoxicillin (10(−8) M). These results are promising for applying the SERS technique for rapid low-concentration determination in different fields.
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spelling pubmed-96960832022-11-26 Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications Chang, Tung-Hao Chang, Yu-Cheng Lee, Chung-I Lin, Ying-Ru Ko, Fu-Hsiang Nanomaterials (Basel) Article This study used a rapid and simple microwave-assisted synthesis method to grow ZnO nanoneedle arrays on the silicon substrate with the ZnO seed layer. The effects of reaction temperature and time on the lengths of ZnO nanoneedle arrays were investigated. The appropriate temperature programming step can grow the longer ZnO nanoneedle arrays at the same reaction time (25 min), which is 2.08 times higher than without the temperature programming step. The geometry of the ZnO nanoneedle arrays features a gradual decrease from the Si substrate to the surface, which provides an excellent progressive refractive index between Si and air, resulting in excellent antireflection properties over an extensive wavelength range. In addition, the ZnO nanoneedle arrays exhibit a suitable structure for uniform deposition of Ag nanoparticles, which can provide three-dimensional hot spots and surface active sites, resulting in higher surface-enhanced Raman scattering (SERS) enhancement, high uniformity, high reusability, and low detection limit for R6G molecule. The ZnO/Ag nanoneedle arrays can also reveal a superior SERS-active substrate detecting amoxicillin (10(−8) M). These results are promising for applying the SERS technique for rapid low-concentration determination in different fields. MDPI 2022-11-12 /pmc/articles/PMC9696083/ /pubmed/36432278 http://dx.doi.org/10.3390/nano12223989 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chang, Tung-Hao
Chang, Yu-Cheng
Lee, Chung-I
Lin, Ying-Ru
Ko, Fu-Hsiang
Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications
title Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications
title_full Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications
title_fullStr Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications
title_full_unstemmed Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications
title_short Optimization Temperature Programming of Microwave-Assisted Synthesis ZnO Nanoneedle Arrays for Optical and Surface-Enhanced Raman Scattering Applications
title_sort optimization temperature programming of microwave-assisted synthesis zno nanoneedle arrays for optical and surface-enhanced raman scattering applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696083/
https://www.ncbi.nlm.nih.gov/pubmed/36432278
http://dx.doi.org/10.3390/nano12223989
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