Shape control in wafer-based aperiodic 3D nanostructures

Nanotechnology. 2014 Jun 13;25(23):235302. doi: 10.1088/0957-4484/25/23/235302. Epub 2014 May 21.


Controlled local fabrication of three-dimensional (3D) nanostructures is important to explore and enhance the function of single nanodevices, but is experimentally challenging. We present a scheme based on e-beam lithography (EBL) written seeds, and glancing angle deposition (GLAD) grown structures to create nanoscale objects with defined shapes but in aperiodic arrangements. By using a continuous sacrificial corral surrounding the features of interest we grow isolated 3D nanostructures that have complex cross-sections and sidewall morphology that are surrounded by zones of clean substrate.

Publication types

  • Research Support, Non-U.S. Gov't