Control over Color of Nanotextured Coatings by Electrospray Deposition

Abstract

Nanotextured polymer coatings were prepared on aluminum substrates by electrospray deposition (ESD) from poly(ethylene oxide) (PEO) solution. By controlling the size of deposits on the substrate, it is possible to change coloring of coatings — red, orange, yellow, green, and blue, — due to thin-film interference. These results indicate that the ESD method is a useful option for preparing optical coatings.