Gas sensing with high-resolution localized surface plasmon resonance spectroscopy.

Gas sensing with high-resolution localized surface plasmon resonance spectroscopy.
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DOI:
10.1021/ja1074272
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发表时间:
2010-12-15
影响因子:
15
通讯作者:
Van Duyne RP
Van Duyne RP
中科院分区:
化学1区
文献类型:
--
作者:
Bingham JM;Anker JN;Kreno LE;Van Duyne RP

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我们报告的第一个惰性气体传感和表征研究的基础上高分辨率局部表面等离子体共振(HR-LSPR)光谱。HR-LSPR用于检测He(g)和Ar(g)或He(g)和N2(g)之间体折射率(RI)的极小变化(< 3 × 10−4)。我们还证明了从传感器暴露于空气(40%湿度)与干燥N2(g)的吸附水的亚单层灵敏度。这些测量显著扩展了等离子体纳米传感器的应用空间和表征工具。
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 change (< 3 × 10−4) in bulk refractive index (RI) between He (g) and Ar (g) or He (g) and N2 (g). We also demonstrate sub-monolayer sensitivity to adsorbed water from exposure of the sensor to air (40% humidity) vs. dry N2 (g). These measurements significantly expand the applications space and characterization tools for plasmonic nanosensors.
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发表时间: 2006-01-01
期刊: ANALYST
影响因子: 4.2
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