Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application

In this work, one-step glancing angle deposition is utilized to fabricate gold and silver nanohelix arrays (NHAs) on smooth glass substrates. During deposition, the substrate is cooled using liquid nitrogen and rotated with a tunable spin rate. The substrate spin rate is tuned to match the depositio...

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Autores principales: Jen, Yi-Jun, Chan, San, Huang, Jyong-Wei, Jheng, Ci-Yao, Liu, Wei-Chih
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4695490/
https://www.ncbi.nlm.nih.gov/pubmed/26714860
http://dx.doi.org/10.1186/s11671-015-1205-8
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author Jen, Yi-Jun
Chan, San
Huang, Jyong-Wei
Jheng, Ci-Yao
Liu, Wei-Chih
author_facet Jen, Yi-Jun
Chan, San
Huang, Jyong-Wei
Jheng, Ci-Yao
Liu, Wei-Chih
author_sort Jen, Yi-Jun
collection PubMed
description In this work, one-step glancing angle deposition is utilized to fabricate gold and silver nanohelix arrays (NHAs) on smooth glass substrates. During deposition, the substrate is cooled using liquid nitrogen and rotated with a tunable spin rate. The substrate spin rate is tuned to match the deposition rate to yield a spiral-like helix structure. The morphologies and optical properties of spiral-like Ag and Au NHAs are measured and compared. The polarization-dependent reflectance of Au NHA leads to a strong g-factor. The three-dimensional nanohelical structures are demonstrated to be a highly sensitive surface-enhanced Raman scattering (SERS) substrate.
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spelling pubmed-46954902016-01-08 Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application Jen, Yi-Jun Chan, San Huang, Jyong-Wei Jheng, Ci-Yao Liu, Wei-Chih Nanoscale Res Lett Nano Express In this work, one-step glancing angle deposition is utilized to fabricate gold and silver nanohelix arrays (NHAs) on smooth glass substrates. During deposition, the substrate is cooled using liquid nitrogen and rotated with a tunable spin rate. The substrate spin rate is tuned to match the deposition rate to yield a spiral-like helix structure. The morphologies and optical properties of spiral-like Ag and Au NHAs are measured and compared. The polarization-dependent reflectance of Au NHA leads to a strong g-factor. The three-dimensional nanohelical structures are demonstrated to be a highly sensitive surface-enhanced Raman scattering (SERS) substrate. Springer US 2015-12-29 /pmc/articles/PMC4695490/ /pubmed/26714860 http://dx.doi.org/10.1186/s11671-015-1205-8 Text en © Jen et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Jen, Yi-Jun
Chan, San
Huang, Jyong-Wei
Jheng, Ci-Yao
Liu, Wei-Chih
Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application
title Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application
title_full Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application
title_fullStr Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application
title_full_unstemmed Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application
title_short Self-Shadowing Deposited Pure Metal Nanohelix Arrays and SERS Application
title_sort self-shadowing deposited pure metal nanohelix arrays and sers application
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4695490/
https://www.ncbi.nlm.nih.gov/pubmed/26714860
http://dx.doi.org/10.1186/s11671-015-1205-8
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