Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 52,
  • Issue 5,
  • pp. 750-754
  • (1998)

Portable, Low-Cost, Solid-State Luminescence-Based O2 Sensor

Not Accessible

Your library or personal account may give you access

Abstract

A novel sensor for quantifying molecular O2 based entirely on solidstate electronics is presented. The sensor is based on the luminescence quenching of tris(4,7-diphenyl-1, 10-phenanthroline)ruthenium(II) ([Ru(dpp)3]2+) by molecular O2. The sensor involves immobilizing the ruthenium complex within a porous sol-gel-processed glass film and casting this film directly onto the surface of a blue quantumwell light-emitting diode (LED). The ruthenium complex is excited by the LED, the [Ru(dpp)3]2+ emission is filtered from the excitation with a low-cost acrylic color filter, and the emission is detected with an inexpensive silicon photodiode. The sensor response to gaseous O2 and dissolved O2 in water is presented. The sensor exhibits fast response times and good reversibility, and detection limits are 0.5% , 0.02% , and 110 ppb, respectively, for O2 in the gaseous (linear Stern-Volmer and multi-site Stern-Volmer analysis) and aqueous phase. This sensor provides a cost-effective alternative to traditional electrochemical-based O2 sensing and also provides a platform for other optically based sensors.

PDF Article
More Like This
Submicrometer organic silica gel fiber for oxygen sensing

Xinghua Yang, Le Li, Libo Yuan, Shouzhu Li, Shenzi Luo, Yanxin Liu, and Lirong Peng
Opt. Lett. 36(23) 4656-4658 (2011)

Applications of quantum dots in optical fiber luminescent oxygen sensors

Pedro A. S. Jorge, Mona Mayeh, Ramazan Benrashid, Paulo Caldas, José L. Santos, and Faramarz Farahi
Appl. Opt. 45(16) 3760-3767 (2006)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved