ピレン化学吸着膜の蛍光特性に及ぼす酸素濃度の影響

概要

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The fluorescent characteristics of 1-pyrenebutyric acid, PBA as a pyrene derivative with the oxygen quenching were investigated to attempt the development of an image measurement technique by using the organic dye as an optical oxygen sensor. The chemisorption technique was used to binding PBA dye on the surface of the aluminum tested plate. The porous absorptive layer was formed by the anodic oxidation treatment on the surface of the tested plate to improve the time responsibility of the fluorescence. The tested plate was installed in the sealed box in which the oxygen concentration was regulated by replacing argon gas or nitrogen gas as the dilution gas, and then the fluorescent intensity of PBA dye was measured by the CCD color camera and the image processing. The cycle testing of the oxygen quenching was curried out, and also the absorption time, the concentration of PBA dye, the dilution gas and the exciting light intensity were changed to confirm the fluorescent characteristics of PBA dye with the oxygen quenching.