Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum

Surface-enhanced Raman scattering (SERS) has been widely reported to improve the sensitivity of Raman spectra. Ordinarily, the laser is focused on the sample to measure the Raman spectrum. The size of the focused light spot is comparable with that of micro-nano structures, and the number of micro-na...

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Autores principales:	Shen Zhang, Zhihui Jiang, Yijin Liang, Yili Shen, Hongmin Mao, Huijuan Sun, Xin Zhao, Xiaoping Li, Wusheng Hu, Guoding Xu, Zhaoliang Cao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	surface-enhanced Raman scattering lyotropic liquid crystal duty cycle silver nanoflower Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/8fc88d1614454ba187aee407fcf99913
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spelling	oai:doaj.org-article:8fc88d1614454ba187aee407fcf999132021-11-11T18:30:55ZEffect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum10.3390/molecules262165221420-3049https://doaj.org/article/8fc88d1614454ba187aee407fcf999132021-10-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6522https://doaj.org/toc/1420-3049Surface-enhanced Raman scattering (SERS) has been widely reported to improve the sensitivity of Raman spectra. Ordinarily, the laser is focused on the sample to measure the Raman spectrum. The size of the focused light spot is comparable with that of micro-nano structures, and the number of micro-nano structures contained in the light spot area (defined as duty cycle) will severely affect the spectrum intensity. In this study, flower-like silver nanostructures were fabricated with a soft lyotropic liquid crystal template in order to investigate the effect of duty cycle. They were observed under a scanning electron microscope, and their spectrum enhancement factor was computed with the obtained Raman spectrum. Then, their duty cycles were measured using a SERS substrate at different locations. A formula was derived to represent the relation between the duty cycle of the nanoflowers and the Raman spectral intensity. This work could promote the actual applications of SERS in high-sensitivity spectrum testing.Shen ZhangZhihui JiangYijin LiangYili ShenHongmin MaoHuijuan SunXin ZhaoXiaoping LiWusheng HuGuoding XuZhaoliang CaoMDPI AGarticlesurface-enhanced Raman scatteringlyotropic liquid crystalduty cyclesilver nanoflowerOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6522, p 6522 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	surface-enhanced Raman scattering lyotropic liquid crystal duty cycle silver nanoflower Organic chemistry QD241-441
spellingShingle	surface-enhanced Raman scattering lyotropic liquid crystal duty cycle silver nanoflower Organic chemistry QD241-441 Shen Zhang Zhihui Jiang Yijin Liang Yili Shen Hongmin Mao Huijuan Sun Xin Zhao Xiaoping Li Wusheng Hu Guoding Xu Zhaoliang Cao Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum
description	Surface-enhanced Raman scattering (SERS) has been widely reported to improve the sensitivity of Raman spectra. Ordinarily, the laser is focused on the sample to measure the Raman spectrum. The size of the focused light spot is comparable with that of micro-nano structures, and the number of micro-nano structures contained in the light spot area (defined as duty cycle) will severely affect the spectrum intensity. In this study, flower-like silver nanostructures were fabricated with a soft lyotropic liquid crystal template in order to investigate the effect of duty cycle. They were observed under a scanning electron microscope, and their spectrum enhancement factor was computed with the obtained Raman spectrum. Then, their duty cycles were measured using a SERS substrate at different locations. A formula was derived to represent the relation between the duty cycle of the nanoflowers and the Raman spectral intensity. This work could promote the actual applications of SERS in high-sensitivity spectrum testing.
format	article
author	Shen Zhang Zhihui Jiang Yijin Liang Yili Shen Hongmin Mao Huijuan Sun Xin Zhao Xiaoping Li Wusheng Hu Guoding Xu Zhaoliang Cao
author_facet	Shen Zhang Zhihui Jiang Yijin Liang Yili Shen Hongmin Mao Huijuan Sun Xin Zhao Xiaoping Li Wusheng Hu Guoding Xu Zhaoliang Cao
author_sort	Shen Zhang
title	Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum
title_short	Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum
title_full	Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum
title_fullStr	Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum
title_full_unstemmed	Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum
title_sort	effect of the duty cycle of flower-like silver nanostructures fabricated with a lyotropic liquid crystal on the sers spectrum
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8fc88d1614454ba187aee407fcf99913
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Effect of the Duty Cycle of Flower-like Silver Nanostructures Fabricated with a Lyotropic Liquid Crystal on the SERS Spectrum

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