title: Depositing ordered arrays of metal sulfide nanoparticles in nanostructures using supercritical fluid carbon dioxide.
abstract: Silver sulfide and cadmium sulfide nanoparticles of controllable sizes are synthesized using a water-in-hexane microemulsion method and stabilized by dodecanethiol. The stabilized metal sulfide nanoparticles can be deposited homogenously on flat substrates forming ordered 2-D arrays in supercritical fluid carbon dioxide (Sc-CO(2)). The use of Sc-CO(2) leaves the particles unaffected by dewetting effects caused by traditional solvents and produces uniform arrays. The Sc-CO(2) deposition technique is capable of filling nanoparticles in nanostructures of silicon wafers which is difficult to accomplish by conventional solvent evaporation methods.
authors.affiliation: Department of Chemistry, University of Idaho, Moscow, Idaho 83844, USA. jswang@uidaho.edu
authors.forename: Joanna S
authors.initials: JS
authors.lastname: Wang
authors.forename: Alexander B
authors.initials: AB
authors.lastname: Smetana
authors.forename: John J
authors.initials: JJ
authors.lastname: Boeckl
authors.forename: Gail J
authors.initials: GJ
authors.lastname: Brown
authors.forename: Chien M
authors.initials: CM
authors.lastname: Wai