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Proceedings Paper

Highly sensitive optical fiber oxygen sensor based on dye entrapped core-shell silica nanoparticles
Author(s): Chen-Shane Chu; Yu-Lung Lo; Ti-Wen Sung
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Paper 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.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775361 (17 May 2011); doi: 10.1117/12.885125
Show Author Affiliations
Chen-Shane Chu, Ming Chi Univ. of Technology (Taiwan)
Yu-Lung Lo, National Cheng Kung Univ. (Taiwan)
Ti-Wen Sung, National Cheng Kung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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