Image of the week: monolayer polystyrene colloidal crystals

By Dean Williams on May 31, 2016

A tilted-view SEM image showing monolayer polystyrene colloidal crystals

This week’s image, taken from a recently published article in Journal of Physics D: Applied Physics, is a tilted SEM of a single self-assembled layer of polystyrene spherical crystals, used as a mask in the fabrication of an antireflection subwavelength grating on a fused silica substrate. The scale bar represents 1 μm.

The grating is deposited using two-step reactive ion etching, while the polystyrene spheres were made by emulsion polymerization.

The full article is available from IOPscience under an Open Access CC BY 3.0 licence.

This work is licensed under a Creative Commons Attribution 3.0 Unported License