title: Nanoscale etching and flattening of metals with ozone water.
abstract: Etchants used for metal etching are generally harmful to the environment. We propose an environmentally friendly method that uses ozone water to etch metals. We measured the dependencies of ozone water etching on the temperature and ozone concentration for several metals and evaluated the surface roughness of the etched surfaces. The etching rate was proportional to the dissolved ozone concentration, and the temperature and the surfaces were smoothed by etching.
authors.affiliation: Department of Mechanical and Control Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
authors.forename: Ryuji
authors.initials: R
authors.lastname: Hatsuki
authors.forename: Takatoki
authors.initials: T
authors.lastname: Yamamoto
mesh_terms: D000143:Acids / Q000737:chemistry*; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D054802:Molecular Imprinting / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010126:Ozone / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties; D014867:Water / Q000737:chemistry*
chemical_list: D000143:Acids; D008670:Metals; D014867:Water; D010126:Ozone