title: Non-lithographic formation of three dimensional periodic nanostructures by germanium nanowire etching.
abstract: The intrinsic reactivity of curved nanoscale germanium surfaces, under carefully controlled anodic etch conditions, is exploited to produce intricate three-dimensional helical patterns. Such structures, retaining crystalline Ge character and yielding strong visible emission, demonstrate a feature spacing of a periodic nature that correlates with their measured width.
authors.affiliation: Department of Chemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
authors.forename: Xuezhen
authors.initials: X
authors.lastname: Huang
authors.forename: Jeffery L
authors.initials: JL
authors.lastname: Coffer