It’s not the sexiest research (no nanobots, no self-cleaning windows, no textiles with colours never seen before on fabrics, no heating up a tumour to destroy it, etc.) I’ve come across but developing a model that predicts a nanostructure’s optical properties is likely to prove valuable. According to the University of British Columbia Chemistry Department researchers the models could be useful with the “design of tailored nano-structures, and be of utility in a wide range of fields, including the remote sensing of atmospheric pollutants and the study of cosmic dust formation.”
From the March 24, 2011 news item on Nanowerk,
Now research published this week by UBC chemists indicates that the optical properties of more complex non-conducting nano-structures can be predicted based on an understanding of the simple nano-objects that make them up. Those optical properties in turn give researchers and engineers an understanding of the particle’s structure.
“Engineering complex nano-structures with particular infrared responses typically involves hugely complex calculations and is a bit hit and miss,” says Thomas Preston, a researcher with the UBC Department of Chemistry.
“Our solution is a relatively simple model that could help guide us in more efficiently engineering nano-materials with the properties we want, and help us understand the properties of these small particles that play an important role in so many processes.”
The findings were published this week in the Proceedings of the National Academy of Sciences (“Vibron and phonon hybridization in dielectric nanostructures”).
“For example, the properties of a more complex particle made up of a cavity and a core structure can be understood as a hybrid of the individual pieces that make it up,” says UBC Professor Ruth Signorell, an expert on the characterization of molecular nano-particles and aerosols and co-author of the study.
The experiment also tested the model against CO2 aerosols with a cubic shape, which play a role in cloud formation on Mars.
The paper, Vibron and phonon hybridization in dielectric nanostructures, is behind a Proceedings of the National Academy of Sciences paywall but an abstract is available here.