Optical fiber pH sensors based on self-assembled multilayered neutral red coatings

  • J. Goicoechea*
  • , F. J. Arregui
  • , I. R. Matías
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The Electrostatic Self Assembly Layer-by-Layer (ESA) technique has been already used for the fabrication of optical fiber pH sensors, the properties of the resultant pH sensitive coatings has been found to be strongly dependent on the fabrication parameters, especially on the pH of the polyelectrolyte solutions used for the deposition of the coatings. In this work the resulting properties of the sensitive coatings have been optimized by changing the parameters of fabrication, Techniques as AFM, for studying the thickness and morphology of the sensing films, and spectroscopy, for studying the composition of the films, were used for the characterization of the devices. Optical fiber pH sensors with response from pH 3 to pH 7 were successfully fabricated.

Original languageEnglish
Title of host publicationEWOFS 2007 Proceedings
Subtitle of host publicationThird European Workshop on Optical Fibre Sensors
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventEWOFS 2007: Third European Workshop on Optical Fibre Sensors - Napoli, Italy
Duration: 4 Jul 20076 Jul 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6619
ISSN (Print)0277-786X

Conference

ConferenceEWOFS 2007: Third European Workshop on Optical Fibre Sensors
Country/TerritoryItaly
CityNapoli
Period4/07/076/07/07

Keywords

  • Electrostatic self-assembly
  • Layer-by-Layer
  • Neutral red
  • pH sensor

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