Hot spots engineering in hierarchical silver nanocap array for surface-enhanced Raman scattering

Jun Wang; Liqing Huang; Lipeng Zhai; Lin Yuan; Lihua Zhao; Weiwei Zhang; Dongzhi Shan; Aiwen Hao; Xuehong Feng; Jian Zhu

doi:10.1016/j.apsusc.2012.08.063

Hot spots engineering in hierarchical silver nanocap array for surface-enhanced Raman scattering

Jun Wang
, Liqing Huang
, Lipeng Zhai
, Lin Yuan
, Lihua Zhao
, Weiwei Zhang
, Dongzhi Shan
, Aiwen Hao
, Xuehong Feng
, Jian Zhu

School of Life Science and Technology (SLST)

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

We proposed a rapid, simple and room-temperature method to fabricate hierarchical silver nanocap arrays, in which hot spots could be facilely engineered on three-dimensional curved surface. Both optical property and surface-enhanced Raman scattering (SERS) activity displayed non-monotonic Ag thickness dependence. Furthermore, the simulation results obtained by finite-difference time-domain (FDTD) method reveal that hot spots intensity and density on three-dimensional curved surface significantly vary and strongly depend on deposited Ag thickness. The investigation opens a possibility for facile fabrication of SERS substrate with promising hot spot engineering on three-dimensional surface and extremely high SERS activity.

Original language	English
Pages (from-to)	605-609
Number of pages	5
Journal	Applied Surface Science
Volume	261
DOIs	https://doi.org/10.1016/j.apsusc.2012.08.063
State	Published - 15 Nov 2012

Keywords

Finite-difference time-domain (FDTD)
Hard anodization (HA)
Hot spots
Nanocap arrays
Surface-enhanced Raman scattering (SERS)

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10.1016/j.apsusc.2012.08.063

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title = "Hot spots engineering in hierarchical silver nanocap array for surface-enhanced Raman scattering",

abstract = "We proposed a rapid, simple and room-temperature method to fabricate hierarchical silver nanocap arrays, in which hot spots could be facilely engineered on three-dimensional curved surface. Both optical property and surface-enhanced Raman scattering (SERS) activity displayed non-monotonic Ag thickness dependence. Furthermore, the simulation results obtained by finite-difference time-domain (FDTD) method reveal that hot spots intensity and density on three-dimensional curved surface significantly vary and strongly depend on deposited Ag thickness. The investigation opens a possibility for facile fabrication of SERS substrate with promising hot spot engineering on three-dimensional surface and extremely high SERS activity.",

keywords = "Finite-difference time-domain (FDTD), Hard anodization (HA), Hot spots, Nanocap arrays, Surface-enhanced Raman scattering (SERS)",

author = "Jun Wang and Liqing Huang and Lipeng Zhai and Lin Yuan and Lihua Zhao and Weiwei Zhang and Dongzhi Shan and Aiwen Hao and Xuehong Feng and Jian Zhu",

year = "2012",

month = nov,

day = "15",

doi = "10.1016/j.apsusc.2012.08.063",

language = "英语",

volume = "261",

pages = "605--609",

journal = "Applied Surface Science",

issn = "0169-4332",

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TY - JOUR

T1 - Hot spots engineering in hierarchical silver nanocap array for surface-enhanced Raman scattering

AU - Wang, Jun

AU - Huang, Liqing

AU - Zhai, Lipeng

AU - Yuan, Lin

AU - Zhao, Lihua

AU - Zhang, Weiwei

AU - Shan, Dongzhi

AU - Hao, Aiwen

AU - Feng, Xuehong

AU - Zhu, Jian

PY - 2012/11/15

Y1 - 2012/11/15

N2 - We proposed a rapid, simple and room-temperature method to fabricate hierarchical silver nanocap arrays, in which hot spots could be facilely engineered on three-dimensional curved surface. Both optical property and surface-enhanced Raman scattering (SERS) activity displayed non-monotonic Ag thickness dependence. Furthermore, the simulation results obtained by finite-difference time-domain (FDTD) method reveal that hot spots intensity and density on three-dimensional curved surface significantly vary and strongly depend on deposited Ag thickness. The investigation opens a possibility for facile fabrication of SERS substrate with promising hot spot engineering on three-dimensional surface and extremely high SERS activity.

AB - We proposed a rapid, simple and room-temperature method to fabricate hierarchical silver nanocap arrays, in which hot spots could be facilely engineered on three-dimensional curved surface. Both optical property and surface-enhanced Raman scattering (SERS) activity displayed non-monotonic Ag thickness dependence. Furthermore, the simulation results obtained by finite-difference time-domain (FDTD) method reveal that hot spots intensity and density on three-dimensional curved surface significantly vary and strongly depend on deposited Ag thickness. The investigation opens a possibility for facile fabrication of SERS substrate with promising hot spot engineering on three-dimensional surface and extremely high SERS activity.

KW - Finite-difference time-domain (FDTD)

KW - Hard anodization (HA)

KW - Hot spots

KW - Nanocap arrays

KW - Surface-enhanced Raman scattering (SERS)

UR - https://www.scopus.com/pages/publications/84867746672

U2 - 10.1016/j.apsusc.2012.08.063

DO - 10.1016/j.apsusc.2012.08.063

M3 - 文章

AN - SCOPUS:84867746672

SN - 0169-4332

VL - 261

SP - 605

EP - 609

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Hot spots engineering in hierarchical silver nanocap array for surface-enhanced Raman scattering

Abstract

Keywords

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