Luminescence-Based Oxygen Sensors

Abstract

The area of oxygen sensors encompasses a broad range of sensing techniques, devices, and applications. The latter range from monitoring combustion mixtures to use in fish farming.1 The majority of the techniques and devices involve transduction of the changes in oxygen concentration or pressure to changes in an electrical parameter such as voltage, current, or resistance. This sensing approach is older and has more working devices on the market. A more recent approach involves transduction via changes in luminescence characteristics of both organic and inorganic dyes. This approach has attracted considerable interest for applications such as pressure sensitive paints (PSP) and for situations amenable to use of fiber optic technology