title: Colloidal self-assembly-directed laser-induced non-close-packed crystalline silicon nanostructures.
abstract: This report describes an ultrafast, large-area, and highly flexible method to construct complex two- and three-dimensional silicon nanostructures with deterministic non-close-packed symmetry. Pulsed excimer laser irradiation is used to induce a transient melt transformation of amorphous silicon filled in a colloidal self-assembly-directed inverse opal template, resulting in a nanostructured crystalline phase. The pattern transfer yields are high, and long-range order is maintained. This technique represents a potential route to obtain silicon nanostructures of various symmetries and associated unique properties for advanced applications such as energy storage and generation.
authors.affiliation: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States.
authors.forename: Kwan Wee
authors.initials: KW
authors.lastname: Tan
authors.forename: Stacey A
authors.initials: SA
authors.lastname: Saba
authors.forename: Hitesh
authors.initials: H
authors.lastname: Arora
authors.forename: Michael O
authors.initials: MO
authors.lastname: Thompson
authors.forename: Ulrich
authors.initials: U
authors.lastname: Wiesner