Gas Sensing with High-Resolution Localized Surface Plasmon Resonance Spectroscopy
Journal of the American Chemical Society2010Vol. 132(49), pp. 17358–17359
Citations Over TimeTop 10% of 2010 papers
Abstract
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 × 10(-4)) in bulk refractive index when the gas was switched between He(g) and Ar(g) or He(g) and N2(g). We also demonstrate submonolayer sensitivity to adsorbed water from exposure of the sensor to air (40% humidity) versus dry N2(g). These measurements significantly expand the applications space and characterization tools for plasmonic nanosensors.
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