Inducing aggregation in aqueous nanoparticle solutions prior to spin-processing permits one to controllably tune the porosity and thickness of the resulting coatings.  We have previously demonstrated that such control allows for the creation of spin-on nanoparticle antireflection coatings with optical properties that may be carefully tuned to minimize reflectance for a given substrate. In this work, we present recent research aimed at more precisely understanding the importance of the spin-processing step in determining the coating porosity and thickness. In addition, we demonstrate that nanoparticle functionalization may be used to mitigate the sensitivity of coatings to environmental fluctuations, as well as to tune coatings for use in sensing humidity or other vapor-phase analytes.

Spin-on functional nanoparticle coatings for antireflection and sensing applications

246th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.