title: Hotspot-engineered 3D multipetal flower assemblies for surface-enhanced Raman spectroscopy.
abstract: Novel 3D metallic structures composed of multipetal flowers consisting of nanoparticles are presented. The control of surface plasmon hotspots is demonstrated in terms of location and intensity as a function of petal number for uniform and reproducible surfaceenhanced Raman spectroscopy (SERS) with high field enhancement.
authors.affiliation: Global Frontier Center for Multiscale Energy System, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-742, Korea.
authors.forename: Kinam
authors.initials: K
authors.lastname: Jung
authors.forename: Jungsuk
authors.initials: J
authors.lastname: Hahn
authors.forename: Sungjun
authors.initials: S
authors.lastname: In
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Bae
authors.forename: Heechul
authors.initials: H
authors.lastname: Lee
authors.forename: Peter V
authors.initials: PV
authors.lastname: Pikhitsa
authors.forename: Kwangjun
authors.initials: K
authors.lastname: Ahn
authors.forename: Kyungyeon
authors.initials: K
authors.lastname: Ha
authors.forename: Jong-Kwon
authors.initials: JK
authors.lastname: Lee
authors.forename: Namkyoo
authors.initials: N
authors.lastname: Park
authors.forename: Mansoo
authors.initials: M
authors.lastname: Choi
mesh_terms: D040761:Biomimetic Materials / Q000737:chemistry; D055590:Electromagnetic Phenomena; D035264:Flowers; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D013059:Spectrum Analysis, Raman / Q000379:methods*; D020349:Surface Plasmon Resonance
keywords: SERS; hotspots; multipetal flower; nanofabrication; surface plasmon (SP)