title: Effective collection and detection of airborne species using SERS-based detection and localized electrodynamic precipitation.
abstract: Three different delivery concepts (standard diffusion, global electrodynamic precipitation, and localized nanolens-based precipitation) and three different SERS enhancement layers (a silver film, a nanolens-based localized silver nanoparticle film, and the standard AgFON) are compared. The nanolens concept is applied to increase the SERS signal: a factor of 633, when compared to a standard mechanism of diffusion, is observed.
authors.affiliation: University of Minnesota, Electrical and Computer Engineering, Rm. 4-178, 200 Union St. SE, Minneapolis, MN 55455, USA.
authors.forename: En-Chiang
authors.initials: EC
authors.lastname: Lin
authors.forename: Jun
authors.initials: J
authors.lastname: Fang
authors.forename: Se-Chul
authors.initials: SC
authors.lastname: Park
authors.forename: Thomas
authors.initials: T
authors.lastname: Stauden
authors.forename: Joerg
authors.initials: J
authors.lastname: Pezoldt
authors.forename: Heiko O
authors.initials: HO
authors.lastname: Jacobs
keywords: electrodynamic precipitation; hybrid molecular arrays; nanolenses; surface patterning; surface-enhanced Raman spectroscopy (SERS)