title: Surface-enhanced fluorescence of rhodamine 6G on the assembled silver nanostructures.
abstract: The fluorescence emission and enhancement of Rhodamine 6G on the silver island films (SiFs) with and without 4-Aminothiophenol molecules have been investigated. It was found that the SiFs without 4-Aminothiophenol molecules (PATP) have less contribution to the fluorescence enhancement. However, when PATP molecules as a spacer were deposited on the SiFs, obvious fluorescence enhanced effect was observed. The results show that the fluorescence enhancement depends on the morphology of the substrate surface and the distance between fluorophore molecules and the substrate surface. The experimental observations can be explained by local surface plasmon resonance and local field enhancement theory.
authors.affiliation: School of Physics and Information Technology, Shaanxi Normal University, 710062 Xi'an, P. R. China.
authors.forename: Gaining
authors.initials: G
authors.lastname: Liu
authors.forename: Hairong
authors.initials: H
authors.lastname: Zheng
authors.forename: Meicen
authors.initials: M
authors.lastname: Liu
authors.forename: Zhenglong
authors.initials: Z
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Dong
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Yan
authors.forename: Xuqiang
authors.initials: X
authors.lastname: Li
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013438:Sulfhydryl Compounds; D013499:Surface Properties
chemical_list: D000814:Aniline Compounds; D005456:Fluorescent Dyes; D012235:Rhodamines; D013438:Sulfhydryl Compounds; C026188:rhodamine 6G; D012834:Silver; C064316:4-aminothiophenol