title: Very thin spin-coated silver films via transparent silver ink for surface plasmon resonance sensor applications.
abstract: We fabricated very thin silver films with thicknesses of 20 nm, 40 nm, and 60 nm on a prism using a spin coating method for surface plasmon resonance (SPR) image sensor module applications. An aqueous silver ionic complex solution was spin-coated and then thermally cured for 10 minutes at 150 degrees C in an oven. The spin-coated solid silver films possessed silver crystallinity. The prism modules with the 20-nm-, 40-nm- and 60-nm-thick thin silver films were applied to an SPR image sensor system. The coefficients of determination for the 20-nm-, 40-nm- and 60-nm-thick silver films were 0.923, 0.990 and 0.989, respectively when standard ethanol solutions with 0.1% intervals in the range of 20.0% to 20.5% were applied. The correlation is high-performed and the coefficients of determination are as close as 1. The spin coating method of very thin silver films for SPR image sensor modules is expected to be a very cost-effective solution because the films can be formed at a low temperature in a short period of time without requiring a vacuum system.
authors.affiliation: School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-Do, 440-746, Korea.
authors.forename: Jung-Han
authors.initials: JH
authors.lastname: Son
authors.forename: Dong Hun
authors.initials: DH
authors.lastname: Lee
authors.forename: Yong-Jin
authors.initials: YJ
authors.lastname: Cho
authors.forename: Myung-Hyun
authors.initials: MH
authors.lastname: Lee
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007281:Ink; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D012399:Rotation; D012834:Silver / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D008567:Membranes, Artificial; D012834:Silver