Optical oxygen sensor based on time-resolved fluorescence

Cheng-Shane Chu; Ssu-Wei Chu

doi:10.1117/12.2178018

1 July 2015 Optical oxygen sensor based on time-resolved fluorescence

Cheng-Shane Chu, Ssu-Wei Chu

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96550Y (2015) https://doi.org/10.1117/12.2178018
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

A new, simple signal processing, low-cost technique for the fabrication of a portable oxygen sensor based on time-resolved fluorescence is described. The sensing film uses the oxygen sensing dye platinum meso-tetra (pentfluorophenyl) porphyrin (PtTFPP) embedded in a polymer matrix. The experimental results reveal that the PtTFPP-doped oxygen sensor has a sensitivity of 2.2 in the 0-100% range. A preparation procedure for coating the photodiodes with the oxygen sensor film that produces repetitive and reliable sensing devices is proposed. The developed time-resolved optical oxygen sensor is portable, low-cost, has simple signal processing, and lacks optical filter elements. It is a cost-effective alternative to traditional electrochemical-based oxygen sensors and provides a platform for other optical based sensors.

Citation Download Citation

Cheng-Shane Chu and Ssu-Wei Chu "Optical oxygen sensor based on time-resolved fluorescence", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550Y (1 July 2015); https://doi.org/10.1117/12.2178018

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