Structure Prediction in Nanoparticle Superlattices
| Date/Time: | Thursday, 19 Jan 2017 from 4:10 pm to 5:00 pm |
|---|---|
| Location: | Physics 3 |
| Phone: | 515-294-7377 |
| Channel: | College of Liberal Arts and Sciences |
| Actions: | Download iCal/vCal | Email Reminder |
Materials whose fundamental units are nanoparticles, instead of atoms
or molecules, are gradually emerging as major candidates to solve many
of the technological challenges of our century. Additionally, they
display unique structural, dynamical and thermodynamical or transport
properties that are not found in other types of materials, often
reflecting deep underlying geometry and topological constraints. In
this talk, I will focus on crystalline assemblies of nanoparticles,
i.e. supercrystals. I will discuss several successes in my group to
predict the structure and dynamics of three successful experimental
strategies for the rational design of nanoparticle materials: DNA
programmable self-assembly, evaporation of organic solvents with
nanoparticles having hydrocarbon as capping ligands, and a new
strategy developed at Ames lab consisting of crystallization of
nanoparticle neutral (uncharged) polymer brushes by induced
electrostatic phase separation.