Gas Sensor Based on Lossy Mode Resonances by Means of Thin Graphene Oxide Films Fabricated onto Planar Coverslips

Autor:	Ignacio Vitoria, Elieser E. Gallego, Sonia Melendi-Espina, Miguel Hernaez, Carlos Ruiz Zamarreño, Ignacio R. Matías
Rok vydání:	2023
Předmět:	Electrical and Electronic Engineering Biochemistry Instrumentation Atomic and Molecular Physics and Optics Analytical Chemistry
Zdroj:	Sensors. 23:1459
ISSN:	1424-8220
Popis:	The use of planar waveguides has recently shown great success in the field of optical sensors based on the Lossy Mode Resonance (LMR) phenomenon. The properties of Graphene Oxide (GO) have been widely exploited in various sectors of science and technology, with promising results for gas sensing applications. This work combines both, the LMR-based sensing technology on planar waveguides and the use of a GO thin film as a sensitive coating, to monitor ethanol, water, and acetone. Experimental results on the fabrication and performance of the sensor are presented. The obtained results showed a sensitivity of 3.1, 2.0, and 0.6 pm/ppm for ethanol, water, and acetone respectively, with a linearity factor R2 > 0.95 in all cases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a85e651e7e62f3fd2d7878b72a983ae6 https://doi.org/10.3390/s23031459 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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