| Summary: | This study demonstrates a technique to enhance oxygen concentration detection by integrating surface plasmon resonance (SPR) and fluorescence-based sensors using multi-mode plastic optical fiber (POF). The optical sensor unit comprises silver with surface plasmon resonance properties and organic dye indicators, primarily focusing on fluorescence dyes, specifically Tris (4,7-diphenyl-1,10-phenanthroline) ruthenium (II) dichloride Ru(dpp)3Cl2/[Ru(dpp)3]2+. The analysis involved analyzing the sensing capabilities of POF coated with [Ru(dpp)3]2+ and Ag/[Ru(dpp)3]2+ in intensity changes and wavelength shift, respectively. The emission spectra of [Ru(dpp)3]2+ showed a peak at 602 nm, and the emission intensity decrased as the oxygen content increased. Incorporatiing SPR revealed a reduction is emission intensity and a leftward wavelength shift with increasing oxygen content. The result demonstrates that Ag[Ru(dpp)3]2+ has great slope of the series with 0.0589 and [Ru(dpp)3]2+ has slope of 0.0099. ©2024 IEEE.
|
|---|