17 May 2011 Highly sensitive optical fiber oxygen sensor based on dye entrapped core-shell silica nanoparticles
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775361 (2011) https://doi.org/10.1117/12.885125
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
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.
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Chen-Shane Chu, Chen-Shane Chu, Yu-Lung Lo, Yu-Lung Lo, Ti-Wen Sung, Ti-Wen Sung, } "Highly sensitive optical fiber oxygen sensor based on dye entrapped core-shell silica nanoparticles", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775361 (17 May 2011); doi: 10.1117/12.885125; https://doi.org/10.1117/12.885125
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