Surface-enhanced infrared absorption sensor material

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing technology of a surface enhanced infrared absorption (SEIRA) sensor having a higher sensitivity and superior reproducibility that can be produced in a simpler and more cost-effective manner.;SOLUTION: This invention provides a process for producing the surface enhanced infrared absorption sensor where a metallic nano-thin film is adsorbed on a piezoelectric substrate, characterized by adsorbing metallic nanoparticles dispersed in a solution on a surface of the substrate, or allowing the adsorbed metallic nanoparticles to be grown in the solution, thereby forming a film, applying infrared light from the substrate on its side remote from the metallic nano-thin film, detecting evanescent waves, which exuded from the substrate, and regulating a surface enhanced infrared absorption activity while monitoring surface enhanced infrared absorption signals in situ, whereby the metallic nano-thin film is grown in the form of flat and divided islands.;COPYRIGHT: (C)2009,JPO&INPIT