报告题目：

Self-assembly of functional materials for optics

And mechanics

时间：2018年11月16号（周五）9：00-10：00

地点：柏彦大厦19层（1912）

报告人：Rémi Dreyfus, Centre National de la

Recherche Scientifique Compass Laboratory,

UMI 3251, CNRS / UPENN / Solvay

Abstract:

The work revolves around the structural and optical properties of assemblies of colloidal particles of diameter ranging from tens of nanometers to tens of microns. In this talk, there will present two examples of assemblies of colloids into potential functional materials.

In the first example, there will show how colloids can be self-organized into a so-called hyperuniform state, a type of organization that has attracted interest over the past decade due to its potential exciting photonic properties.

In the second example, there will show how we manage to organize nanoparticles onto spherical droplets to further transform there into mecanochromic microcapsules.

This work evidences novel ways of assembling hybrid composite materials from colloidal suspensions, opening new routes for bottom-up assemblies of new functional materials.

Biography:

Remi Dreyfus is currently a CNRS researcher at COMPASS lab (UMI 3254), a joint laboratory CNRS/Solvay/UPenn based in Bristol and Philadelphia, Pennsylvania. Dr. Rémi Dreyfus is a French CNRS researcher, performing academic research within Solvay, where he works in close collaboration with US professors at UPENN. He holds a PhD and an HdR from University Pierre et Marie Curie in Physics of Fluids. During his PhD, he developed the first swimming micromachines based on colloidal assembly. After his PhD, he joined the research effort at New York University led by Paul Chaikin, David Pine and Nadrian Seeman to create self-replicating structures made of colloids. After his postdoc, he joined the COMPASS lab. His research has been carried out both on fundamental and an applied science levels. He has been devoted to cross-disciplinary topics including fluid mechanics, colloidal science, optics and microscopy, and statistical mechanics.