Fan-Shaped Gold Nanoantennas above Reflective Substrates for Surface-Enhanced Infrared Absorption (SEIRA)

被引：240

作者：

Brown, Lisa V. ^{[1
,4
]}

Yang, Xiao ^{[2
,4
]}

Zhao, Ke ^{[3
,4
]}

Zheng, Bob Y. ^{[3
,4
]}

Nordlander, Peter ^{[2
,4
]}

Halas, Naomi J. ^{[1
,2
,3
,4
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

[2] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[3] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[4] Rice Univ, Lab Nanophoton, Houston, TX 77005 USA

来源：

NANO LETTERS | 2015年 / 15卷 / 02期

关键词：

SEIRA; FTIR; nanoantennas; reflection; alkanethiols; RAMAN-SCATTERING; OPTICAL-PROPERTIES; METAL-SURFACES; REAL-TIME; SPECTROSCOPY; MOLECULES; PHASE; LITHOGRAPHY; MONOLAYERS; ANTENNAS;

D O I：

10.1021/nl504455s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here, we report a new nanoantenna for surface-enhanced infrared absorption (SEIRA) detection, consisting of a fan-shaped Au structure positioned at a well-specified distance above a reflective plane with an intervening silica spacer layer. We examine how to optimize both the antenna dimensions and the spacer layer for optimal SEIRA enhancement of the CH stretching mode. This tunable 3D geometry yields a theoretical SEIRA enhancement factor of 105, corresponding to the experimental detection of 20200 zeptomoles of octadecanethiol, using a standard commercial FTIR spectrometer. Experimental studies illustrate the sensitivity of the observed SEIRA signal to the gap dimensions. The optimized antenna structure exhibits an order of magnitude greater SEIRA sensitivity than previous record-setting designs.

引用

页码：1272 / 1280

页数：9

共 50 条

[41] Biochemical applications of surface-enhanced infrared absorption spectroscopy
Ataka, Kenichi
Heberle, Joachim
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2007, 388 (01) : 47 - 54
[42] Biochemical applications of surface-enhanced infrared absorption spectroscopy
Kenichi Ataka
Joachim Heberle
Analytical and Bioanalytical Chemistry, 2007, 388 : 47 - 54
[43] Bioanalytical Applications of Surface-enhanced Infrared Absorption Spectroscopy
Wang Li-Xu
Jiang Xiu-E
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY, 2012, 40 (07) : 975 - 981
[44] Thermoplasmonic Effect of Surface-Enhanced Infrared Absorption in Vertical Nanoantenna Arrays
Mancini, Andrea
Giliberti, Valeria
Alabastri, Alessandro
Calandrini, Eugenio
De Angelis, Francesco
Garoli, Denis
Ortolani, Michele
JOURNAL OF PHYSICAL CHEMISTRY C, 2018, 122 (24) : 13072 - 13081
[45] Self-assembled monolayers of thiophenol on gold as a novel substrate for surface-enhanced infrared absorption
Seelenbinder, JA
Brown, CW
Urish, DW
APPLIED SPECTROSCOPY, 2000, 54 (03) : 366 - 370
[46] Facile Fabrication of Silver Nanoparticulate Films on Porous Silicon for Surface-Enhanced Infrared Absorption Spectroscopy
Zhou Xiao-Hui
Yan Hong
Xiao Shou-Jun
CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2011, 27 (11) : 2291 - 2297
[47] Surface enhanced infrared absorption of chemisorbed carbon monoxide using plasmonic nanoantennas
Haase, J.
Bagiante, S.
Sigg, H.
van Bokhoven, J. A.
OPTICS LETTERS, 2017, 42 (10) : 1931 - 1934
[48] Multiple internal reflection in surface enhanced infrared absorption spectroscopy (SEIRA) and its significance for various analyte groups
Wanzenbock, HD
Mizaikoff, B
Weissenbacher, N
Kellner, R
JOURNAL OF MOLECULAR STRUCTURE, 1997, 410 : 535 - 538
[49] Optimization and quantification of surface enhanced infrared absorption using gradient gold island films
Kratz, C.
Oates, T. W. H.
Hinrichs, K.
THIN SOLID FILMS, 2016, 617 : 33 - 37
[50] Metal-insulator-metal (MIM) star-disc nanoantenna for molecular sensing by surface-enhanced infrared absorption (SEIRA) spectroscopy
Li, Yue
Luo, Yunfei
Lin, Xunjie
Li, Dongxian
Gong, Tiancheng
Wang, Changtao
Yue, Weisheng
SURFACES AND INTERFACES, 2025, 57

← 1 2 3 4 5 →