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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Bottom Up Modelling of Liquid Crystals and Device
Applications - Claudio Zannoni (Università di Bolo
gna)
DTSTART;TZID=Europe/London:20190516T133000
DTEND;TZID=Europe/London:20190516T141000
UID:TALK124579AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/124579
DESCRIPTION:Liquid crystals (LC)\, with their unique combinati
on of physical properties\, offer an increasing nu
mber of novel fascinating applications ranging fro
m optical and haptic displays to organic electroni
cs devices\, waveguides etc... The variety of obse
rvables of interest\, and the complexity of LC mes
ogens require their bottom up modelling and comput
er simulations to be performed at different (micro
-\, nano- and Angstrom) length scales\, that can b
e tackled respectively with lattice\, molecular an
d atomistic approaches. In the talk we plan to pre
sent some recent examples of application of these
different simulations. In particular\, we show th
at Monte Carlo simulations of lattice models [1] c
an help investigating the structure of defects in
photopatterned hybrid nematic films with different
in plane surface order [2]. A much more detailed\
, atomistic level description is instead required
to try and understand the role of liquid crystal o
rdering\, if present\, in rationalizing charge mob
ility in organic semiconductors and\, possibly in
designing better organic electronic materials. We
shall discuss\, in particular\, the proposed hypot
hesis [3] that a smectic E organization is key to
the unusually high performance of certain organic
seminconductors\, e.g. Ph-BTBT-C10 [4].
[1] C
. Chiccoli\, L. R. Evangelista\, P. Pasini\, G. Sk
ač\;ej\, R. Teixeira de Souza and C. Zannoni\
, Scientific Reports\, 2018\, 8\, 2130.
[2] C
. Chiccoli\, P. Pasini\, \, C. Zannoni\, G. Ska
10D\;ej\, H. Yoshida\,T. Hiroshima\, K. Sunami\, T
. Ouchi\, and M. Ozaki\, submitted (2018)
[3]
H. Iino\, T. Usui and J.-i. Hanna\, Nature Comm. 6
\, 6828 (2015).
[4] A. Baggioli\, M. Casalegno
\, G. Raos\, L. Muccioli\, S. Orlandi\, and C. Zan
noni submitted (2019).
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:INI IT
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