Small particles in liquid crystal phases

Condensed Matter lunchtime seminar

Small particles in liquid crystal phases

  • Event time: 1:00pm
  • Event date: 25th October 2010
  • Speaker: Ingo Dierking (School of Physics and Astronomy University of Manchester)
  • Location: Room 2511,

Event details

Liquid crystals exhibit the extraordinary property of self-organisation. We will discuss how self-organisation can be transferred to dispersed particles using liquid crystal phases. Liquid crystal ? nanotube dispersions and their properties will be discussed for example in the context of sensor devices. Using nano-particles to stabilise Blue Phases for future fast response, and easy production flat panel screens will also be discussed. At last, we will touch on the behaviour of particles in liquid crystal phases under applied electric fields. A wealth of particle dynamics can be observed, much larger than expected from normal electrophoresis. The latter opens more questions than providing answers. Particle motion will be discussed for nematic, cholesteric, and smectic phases, as well as the isotropic phase of a liquid crystal.Liquid crystals exhibit the extraordinary property of self-organisation. We will discuss how self-organisation can be transferred to dispersed particles using liquid crystal phases. Liquid crystal nanotube dispersions and their properties will be discussed for example in the context of sensor devices. Using nano-particles to stabilise Blue Phases for future fast response, and easy production flat panel screens will also be discussed. At last, we will touch on the behaviour of particles in liquid crystal phases under applied electric fields. A wealth of particle dynamics can be observed, much larger than expected from normal electrophoresis. The latter opens more questions than providing answers. Particle motion will be discussed for nematic, cholesteric, and smectic phases, as well as the isotropic phase of a liquid crystal.

This is a weekly series of informal talks given primarily by members of the soft condensed matter and statistical mechanics groups, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..

Find out more about Condensed Matter lunchtime seminars.