Gas Sensing with High-Resolution Localized Surface Plasmon Resonance Spectroscopy

被引：200

作者：

Bingham, Julia M. ^{[1
]}

Anker, Jeffrey N. ^{[1
]}

Kreno, Lauren E. ^{[1
]}

Van Duyne, Richard P. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 49期

基金：

美国国家科学基金会;

关键词：

ENHANCED RAMAN-SPECTROSCOPY; SILVER NANOPARTICLES; NANOSPHERE LITHOGRAPHY; SENSORS; PHASE; SELECTIVITY; MONOLAYER; SPECTRUM; ARRAY;

D O I：

10.1021/ja1074272

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the first inert gas sensing and characterization studies based on high-resolution localized surface plasmon resonance (HR-LSPR) spectroscopy. HR-LSPR was used to detect the extremely small changes (<3 x 10(-4)) in bulk refractive index when the gas was switched between He(g) and Ar(g) or He(g) and N-2(g). We also demonstrate submonolayer sensitivity to adsorbed water from exposure of the sensor to air (40% humidity) versus dry N-2(g). These measurements significantly expand the applications space and characterization tools for plasmonic nanosensors.

引用

页码：17358 / 17359

页数：2

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