Choi, Baeck B. Kim, Bethy Chen, Yiqi Yoo, Sung Jong Cho, Younghyun Jiang, Peng 2024-01-19T14:30:28Z 2024-01-19T14:30:28Z 2021-10-21 2021-07 1226-086X https://pubs.kist.re.kr/handle/201004/116792 The colloidal Langmuir-Blodgett coating process is used to fabricate Au-covered silica sphere monolayer (Au film over silica nanosphere (AuFON)) and study the effects of silica diameter on surface plasmon resonance (SPR) sensing sensitivity. The resulting hexagonal close-packed (HCP) monolayers are prepared with silica sphere diameters of 200, 400, 700, and 1000 nm. In SPR sensing applications, the optical properties of Au-covered silica sphere monolayer are evaluated by measuring normal-incidence reflection spectra and sensing tests. The high sensitivity (nm/RIU) is observed in silica sphere diameter (1000 > 700 > 400 > 200 nm) and plasmon mode (dipole > Fano resonance (FR) > and high order) while the highest sensitivity is 968 nm/RIU (dipole mode, 1000 nm of silica sphere diameter). 3-D Finite Difference Time Domain (FDTD) simulation shows a sensitivity trend similar to the experimental results. (c) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved. English 한국공업화학회 Elevated surface plasmon resonance sensing sensitivity of Au-covered silica sphere monolayer prepared by Langmuir-Blodgett coating Article 10.1016/j.jiec.2021.04.026 1 Journal of Industrial and Engineering Chemistry, v.99, pp.179 - 186 Journal of Industrial and Engineering Chemistry 99 179 186 N scie scopus kci ART002742510 000655693700003 2-s2.0-85106085473 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article TRANSMISSION FABRICATION PARTICLES SENSORS SUPRAMOLECULAR CHEMISTRY GOLD NANOPARTICLES OPTICAL-PROPERTIES LYCURGUS CUP METAMATERIALS SPECTROSCOPY Surface plasmon resonance (SPR) Plasmonics Nanostructure Colloidal self-assembly AuFON FDTD