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  • In Jour Smart Sensing And Intelligent Systems

 

Article | 01-June-2015

A COMPARATIVE STUDY IN THE SENSITIVITY OF OPTICAL FIBER REFRACTOMETERS BASED ON THE INCORPORATION OF GOLD NANOPARTICLES INTO LAYERBY-  LAYER FILMS

In this work, optical fiber refractometers based on the successive incorporation of gold nanoparticles have been fabricated by means of the Layer-by-Layer Embedding (LbL-E) deposition technique. This enables the apparition of two different optical phenomena, Localized Surface Plasmon Resonance (LSPR) and Lossy Mode Resonance (LMR). The absorption peaks related to both phenomena were captured during the fabrication process, showing a different evolution as a function of the resultant thickness

Pedro J. Rivero, Miguel Hernaez, Javier Goicoechea, Ignacio R. Matías, Francisco J. Arregui

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 2, 822–841

Original Paper | 15-February-2020

Fluctuation enhanced gas sensing using UV irradiated Au-nanoparticle-decorated WO3-nanowire films

WO3 nanowires (WO3-NWs) decorated with gold nanoparticles (AuNPs) were utilized in resistive gas sensor devices to detect ethanol by use of fluctuation enhanced sensing (FES).  The experimental system records both DC resistance and fluctuations of the sensing film. Our data verify that the sensitivity and selectivity of the gas sensor are improved by applying FES when the sensor is stimulated with a combination of UV light and heating. We conclude that UV light can produce improved gas

Maciej Trawka, Janusz Smulko, Lech Hasse, Radu Ionescu, Fatima E. Annanouch, Eduard Llobet, Claes G. Granqvist, Laszlo B. Kish

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5

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