Highly-sensitive optical fiber oxygen sensor based on dye entrapped core-shell silica nanoparticles

Chen Shane Chu, Yu Lung Lo, Ti Wen Sung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a highly-sensitive oxygen sensor that comprises an optical fiber coated at one end with platinum (II) meso-tetrakis (pentrafluorophenyl)porphine (PtTFPP) and PtTFPP entrapped core-shell silica nanaparticles embedded in an n-octyltriethoxysilane (Octyl-triEOS)/ tetraethylorthosilane (TEOS) composite xerogel. The sensitivity of the optical oxygen sensor is quantified in terms of the ratio I0/I100, where I0 and I100 represent the detected fluorescence intensities in pure nitrogen and pure oxygen environments, respectively. The experimental results reveal that the oxygen sensor has a sensitivity of 166. The response time was 1.3 s when switching from pure nitrogen to pure oxygen, and 18.6 s when switching in the reverse direction.

Original languageEnglish
Title of host publication21st International Conference on Optical Fiber Sensors
DOIs
Publication statusPublished - 2011 Jun 9
Event21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada
Duration: 2011 May 152011 May 19

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7753
ISSN (Print)0277-786X

Other

Other21st International Conference on Optical Fiber Sensors
CountryCanada
CityOttawa, ON
Period11-05-1511-05-19

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Chu, C. S., Lo, Y. L., & Sung, T. W. (2011). Highly-sensitive optical fiber oxygen sensor based on dye entrapped core-shell silica nanoparticles. In 21st International Conference on Optical Fiber Sensors [775361] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7753). https://doi.org/10.1117/12.885125