title: Local electrode atom probe analysis of  silicon nanowires grown with an  aluminum catalyst.
abstract: Local electrode atom probe (LEAP) tomography of Al-catalyzed silicon nanowires synthesized by the vapor–liquid–solid method is presented. The concentration of Al within the Al-catalyzed nanowire was found to be 2 × 10(20) cm(-3), which is higher than the expected solubility limit for Al in Si at the nanowire growth temperature of 550°C. Reconstructions of the Al contained within the nanowire indicate a denuded region adjacent to the Al catalyst/Si nanowire interface, while Al clusters are distributed throughout the rest of the silicon nanowire.
authors.affiliation: Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: Chad M
authors.initials: CM
authors.lastname: Eichfeld
authors.forename: Stephan S A
authors.initials: SS
authors.lastname: Gerstl
authors.forename: Ty
authors.initials: T
authors.lastname: Prosa
authors.forename: Yue
authors.initials: Y
authors.lastname: Ke
authors.forename: Joan M
authors.initials: JM
authors.lastname: Redwing
authors.forename: Suzanne E
authors.initials: SE
authors.lastname: Mohney
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D002384:Catalysis; D004566:Electrodes; D008422:Materials Testing / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012825:Silicon / Q000737:chemistry*
chemical_list: D000535:Aluminum; D012825:Silicon