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Journal of Materials Science and Nanotechnology | Volume 2
allied
academies
October 29-30, 2018 | London, UK
Nanomaterials and Nanotechnology
International Conference on
This presentation addresses the critical need of a modern
optical industry for low driving voltage adaptive materials
providing large phase retardation (for UV, visible and IR) within
a sub-millisecond time frame. Two technologically innovative
researchareasarepursued inparallel andthenmerged, resulting
in the creation of a new class of optical materials - ferroelectric
nanoparticles doped liquid crystal / polymer composites. The
first research direction advances the development of a liquid
crystal being immersed into a nano-structured sponge-like
polymer network. The network’s long chains impose a desired
alignment for liquid crystal molecules enabling the creation
of thick homogeneous liquid crystal slabs (up to 1 mm, in
comparison with available today only 50 microns thick aligned
liquid crystal layers). On the other hand, mixing ferroelectric
nanoparticles with a liquid crystal, generates ultrahigh electric
fields within the liquid crystal, which, combined with their small
size, produces a uniquely exciting and largely unexplored system
of composite materials which exhibit novel collective particle-
host interactions. These interactions promise a variety of exotic
electro-optic and other applications. In this case, ferroelectric
nanoparticles share their high intrinsic sensitivity to electric
fields with the entire liquid crystal matrix. Therefore, doping
the liquid crystal with ferroelectric nanoparticles, progressed as
the second research direction simultaneously with the first one,
brings benefits of a lower driving voltage and faster switching
speed than in any liquid crystal devices available today. As
a result, we demonstrate the power of nanotechnology to
amplify by orders of magnitude the natural properties of liquid
crystals by doping themwith nanoparticles and hosting them in
a Nano-confining polymer matrix.
Speaker Biography
Anatoliy V Glushchenko received his Ph.D. in Physics in 1997 from the Institute of
Physics, National Academy of Science (Kyiv, Ukraine). He is a professor of Physics at the
University of Colorado at Colorado Springs (UCCS) where he teaches advanced Physics
classes, directs the Center for Advanced Technologies & Optical Materials and leads
the broad range of fundamental and applied research in biophysics and soft condensed
matter. He is the author of more than 200 research papers and patents and made more
than 250 presentations at various conferences.
e:
Anatoliy V Glushchenko
University of Colorado, USA
Liquid crystal polymer composites doped with ferroelectric nanoparticles – novel
optical materials for tunable lenses, prisms and beam steering devices