Lots of info related to sensor, the oxygen concentration, luminescent oxygen sensors, oxygen sensors, and diffusion rate are described in this paper. Inside this paper you can learn explanation about nanometer, method, sensors, and pressure.
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Luminescent oxygen sensors are devices in which the active element involves a luminescent dye in a polymer film. Oxygen partitions into the polymer from an adjacent gas or liquid phase and quenches the dye luminescence to an extent that depends on the amount of oxygen present in the film. When the dyes are dissolved in or attached to the molecules of a pure polymer film, the quenching kinetics can be described completely in terms of parameters that can be determined independently: the excited-state lifetime of the dye and the permeability (PO2) and diffusion coefficient (DO2) of oxygen in the polymer. In many sensors, nanometer-sized inorganic particles are often added to the active matrix. These particles are added either as carriers for the dye molecules or to reinforce the polymer film.
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