Improved Charge Transfer Contribution by Cosputtering Ag and ZnO

A two-dimensional polystyrene microsphere array cosputtered with Ag and ZnO was designed for evaluating surface-enhanced Raman scattering (SERS) activity. The surface plasmon resonance (SPR) and SERS properties were significantly changed by the introduction of ZnO into the Ag film. By increasing the...

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Main Authors:	Bingbing Han, Shuang Guo, Sila Jin, Eungyeong Park, Xiangxin Xue, Lei Chen, Young Mee Jung
Format:	Article
Language:	English
Published:	MDPI AG 2020-07-01
Series:	Nanomaterials
Subjects:	SERS SPR CT EM Ag/ZnO film
Online Access:	https://www.mdpi.com/2079-4991/10/8/1455

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spelling	doaj-dd3c3ae8accb4715bd8f48da1ce8449c2020-11-25T03:06:01ZengMDPI AGNanomaterials2079-49912020-07-01101455145510.3390/nano10081455Improved Charge Transfer Contribution by Cosputtering Ag and ZnOBingbing Han0Shuang Guo1Sila Jin2Eungyeong Park3Xiangxin Xue4Lei Chen5Young Mee Jung6Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Jilin Normal University, Ministry of Education, Changchun 130103, ChinaDepartment of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chunchon 24341, KoreaDepartment of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chunchon 24341, KoreaDepartment of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chunchon 24341, KoreaKey Laboratory of Preparation and Applications of Environmental Friendly Materials, Jilin Normal University, Ministry of Education, Changchun 130103, ChinaKey Laboratory of Preparation and Applications of Environmental Friendly Materials, Jilin Normal University, Ministry of Education, Changchun 130103, ChinaDepartment of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chunchon 24341, KoreaA two-dimensional polystyrene microsphere array cosputtered with Ag and ZnO was designed for evaluating surface-enhanced Raman scattering (SERS) activity. The surface plasmon resonance (SPR) and SERS properties were significantly changed by the introduction of ZnO into the Ag film. By increasing the Ag sputtering power, a redshift of the SPR peak was obtained. Moreover, improved SERS activity occurred because of the electromagnetic (EM) contribution from the increasing Ag content and the charge transfer (CT) contribution from the introduction of ZnO. More importantly, the Hall effect was employed to evaluate the carrier density effect on the SERS contribution of the Ag/ZnO film. The increase in the carrier density as the Ag sputtering power increased indicated an increasing number of free electrons stored in the Ag/ZnO film, which was accompanied by improved EM and CT contributions.https://www.mdpi.com/2079-4991/10/8/1455SERSSPRCTEMAg/ZnO film
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Bingbing Han Shuang Guo Sila Jin Eungyeong Park Xiangxin Xue Lei Chen Young Mee Jung
spellingShingle	Bingbing Han Shuang Guo Sila Jin Eungyeong Park Xiangxin Xue Lei Chen Young Mee Jung Improved Charge Transfer Contribution by Cosputtering Ag and ZnO Nanomaterials SERS SPR CT EM Ag/ZnO film
author_facet	Bingbing Han Shuang Guo Sila Jin Eungyeong Park Xiangxin Xue Lei Chen Young Mee Jung
author_sort	Bingbing Han
title	Improved Charge Transfer Contribution by Cosputtering Ag and ZnO
title_short	Improved Charge Transfer Contribution by Cosputtering Ag and ZnO
title_full	Improved Charge Transfer Contribution by Cosputtering Ag and ZnO
title_fullStr	Improved Charge Transfer Contribution by Cosputtering Ag and ZnO
title_full_unstemmed	Improved Charge Transfer Contribution by Cosputtering Ag and ZnO
title_sort	improved charge transfer contribution by cosputtering ag and zno
publisher	MDPI AG
series	Nanomaterials
issn	2079-4991
publishDate	2020-07-01
description	A two-dimensional polystyrene microsphere array cosputtered with Ag and ZnO was designed for evaluating surface-enhanced Raman scattering (SERS) activity. The surface plasmon resonance (SPR) and SERS properties were significantly changed by the introduction of ZnO into the Ag film. By increasing the Ag sputtering power, a redshift of the SPR peak was obtained. Moreover, improved SERS activity occurred because of the electromagnetic (EM) contribution from the increasing Ag content and the charge transfer (CT) contribution from the introduction of ZnO. More importantly, the Hall effect was employed to evaluate the carrier density effect on the SERS contribution of the Ag/ZnO film. The increase in the carrier density as the Ag sputtering power increased indicated an increasing number of free electrons stored in the Ag/ZnO film, which was accompanied by improved EM and CT contributions.
topic	SERS SPR CT EM Ag/ZnO film
url	https://www.mdpi.com/2079-4991/10/8/1455
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Improved Charge Transfer Contribution by Cosputtering Ag and ZnO

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