UV plasmonic device for sensing ethanol and acetone

Mitsuhiro Honda*, Yo Ichikawa, Alex G. Rozhin, Sergei A. Kulinich

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In the present study, we demonstrate efficient detection of volatile organic vapors with improved sensitivity, exploiting the localized surface plasmon resonance of indium nanograins in the UV range (UV-LSPR). The sensitivity of deep-UV-LSPR measurements toward ethanol was observed to be 0.004 nm/ppm, which is 10 times higher than that of a previously reported visible-LSPR device based on Ag nanoprisms [Sensors 11, 8643 (2011)]. Although practical issues such as improving detection limits are still remaining, the results of the present study suggest that the new approach based on UV-LSPR may open new avenues to the detection of organic molecules in solid, liquid, and gas phases using plasmonic sensors.

Original languageEnglish
Article number012001
JournalApplied Physics Express
Issue number1
Early online date1 Dec 2017
Publication statusPublished - 1 Dec 2017


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