Scientists from Tokyo Metropolitan University have
developed a new method for making ordered arrays of nanoholes in
metallic oxide thin films using a range of transition metals. The
team used a template to pre-pattern metallic surfaces with an
ordered array of dimples before applying electrochemistry to
selectively grow an oxide layer with holes. The process makes a
wider selection of ordered transition metal nanohole arrays
available for new catalysis, filtration, and sensing
applications.
