Title :
Humidity sensor based on silver nanoparticles embedded in a polymeric coating
Author :
Rivero, Pedro J. ; Urrutia, Aitor ; Goicoechea, Javier ; Arregui, Francisco J. ; Matias, Ignacio R.
Author_Institution :
Electr. & Electron. Eng. Dept., Public Univ. of Navarra, Pamplona, Spain
fDate :
Nov. 28 2011-Dec. 1 2011
Abstract :
In this work, a new humidity sensor based on the deposition of silver nanoparticles embedded in a polymeric coating on an optical fiber core is presented. The silver nanoparticles inside the coating were characterized by transmission electron microscopy (TEM) in order to get additional information about their size and shape. An increase of the Surface Plasmon Resonance (SPR) peak intensity is observed when the coating is built up by using the Layer-by-Layer (LbL) deposition technique. Changes in Relative Humidity from 20% to 80% are detected by a shift of the SPR wavelength.
Keywords :
coating techniques; humidity sensors; nanoparticles; polymers; silver; surface plasmon resonance; transmission electron microscopy; Ag; LbL deposition technique; SPR peak intensity; SPR wavelength; TEM; humidity sensor; layer-by-layer deposition technique; optical fiber core; polymeric coating; relative humidity; silver nanoparticles; surface plasmon resonance peak intensity; transmission electron microscopy; Coatings; Humidity; Nanoparticles; Optical films; Optical sensors; Polymers; Silver; Optical fiber; humidity sensor; polymeric coating; resonances; synthesis of silver nanoparticles;
Conference_Titel :
Sensing Technology (ICST), 2011 Fifth International Conference on
Conference_Location :
Palmerston North
Print_ISBN :
978-1-4577-0168-9
DOI :
10.1109/ICSensT.2011.6137003
