title: Supercritical fluid deposition of uniform PbS nanoparticle films for energy-transfer studies.
abstract: Using supercritical fluid CO(2) (Sc-CO(2)) as a medium, PbS nanoparticles can be uniformly deposited on surfaces of various substrates. Sc-CO(2) deposition of PbS nanoparticles on carbon-coated copper grids, into small holes in silicon, and formation of uniform PbS nanoparticle films on glass are described. Fluorescence spectra of PbS nanoparticles obtained from the films prepared by the Sc-CO(2) method indicate effective energy transfer between PbS nanoparticles of different sizes.
authors.affiliation: Materials & Manufacturing Directorate, Air Force Research Laboratory, 3005 Hobson Way, Wright-Patterson Air Force Base, OH 45433, USA.
authors.forename: Joanna S
authors.initials: JS
authors.lastname: Wang
authors.forename: Gail J
authors.initials: GJ
authors.lastname: Brown
authors.forename: Wei-Chun
authors.initials: WC
authors.lastname: Hung
authors.forename: Chien M
authors.initials: CM
authors.lastname: Wai