Dr hab' Ewa Gorecka

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Laboratory of Dielectrics and Magnetics,
Chemistry Department, Warsaw University,
Warsaw, Poland

• Dr hab. Ewa Gorecka
• Dr Damian Pociecha
• Dr Jadwiga Szydlowska
• Dr hab. Adam Krowczynski
• Dr hab. Jozef Mieczkowski
• Dr. Joanna Matraszek

Research Interest nanostructured materials in
particular polar liquid crystals,
self-aggregation processes for low weight
molecules and dendrimeric materials, magnetic
materials, photo-induced charge transfer process
etc Publications 100 papers over last 15
years Citations 1000 over last 15 years Current
Projects KBN project, 4 bilateral international
projects (with France, Slovenia, Ukraine, Japan),
RTN FAMOUS under 5th FP
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Polish French Bilateral Program POLONIUM
(2002-2004)
SELECTED PAPERS U. Pietrasik, J. Szydlowska, A.
Krowczynski, D. Pociecha, E. Gorecka, D. Guillon,
Re-entrant isotropic phase between lamellar and
columnar mesophases, J. Am. Chem. Soc., 124
(30) 8884-8890, (2002) J. Szydlowska, J.
Mieczkowski, J. Matraszek, D.W. Bruce, E.
Gorecka, D. Pociecha, D. Guillon, Bent-core
liquid crystals forming 2D- and 3D- modulated
structures, Phys. Rev. E., 67, 031702,
(2003) E. Gorecka, D. Pociecha, J.
Mieczkowski, J. Matraszek, D. Guillon and B.
Donnio, Axially Polar Columnar Phase Made of
Polycatenar Bent-Shaped Molecules, J. Am. Chem.
Soc., 126 (49) 15946 - 15947, (2004)
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PolishSlovene scientific and technological
international cooperation joint projects
(2000-2004)

• SELECTED PAPERS
• D. Pociecha, E. Gorecka, M. Cepic, N. Vaupotic,
  B. Zeks, D. Kardas, J. Mieczkowski "Reentrant
  ferroelectricity in liquid crystals", Phys. Rev.
  Lett., 86, 3048 (2001).
• M. Cepic, E. Gorecka, D. Pociecha, B. Zeks, "
  Theorethical and experimental study of the
  intemediate SmC phases in antiferroelectric
  liquid crystals", J. Chem. Phys., 117, 1817
  (2002).
• M. Cepic, E. Gorecka, D. Pociecha, N. Vaupotic,
  "System with competing synclinic-anticlinic
  interactios", in Relaxation Phenomena Liquid
  Crystals,, ed. W. Hasse, S. Wrobel,
  Springer-Verlag Berlin Heilderberg, (2003)
• D. Pociecha, M. Cepic, E. Gorecka, J.
  Mieczkowski , "Ferroelectric mesophase with
  randomized interlayer structure", Phys. Rev.
  Lett., 91, 185501, (2003)

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FAMOUSFullerene-Based Advanced Materials for
Optoelectronic utilization

• LESR method for charge separated state detection
  (J.Szydlowska, K.Trzcinska, A.Rogowska)
• synthesis of new fullerene derivatives forming
  liquid crystals or suitable for preparation of
  mesogenic mixtures (J. Mieczkowski, A.
  Krowczynski)
• structure studies of new fullerene derivatives
  (P. Bilkova, Y. Corvis, D. Pociecha)
• modeling of self-aggregation process for
  fullerene materials (A. Sasanovas, G.Quemener)

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Submitted project under the 6th FP NMP
-Nano-technologies and nano-sciences,
knowledge-based multifunctional materials, and
new production processes and devices call
POLAR Polar Order in FLuids Made of Achiral and
ChiRal Materials
Priority 3 NMP NMP research area(s)
NMP-2003-3.4.1.1-1 Self-Organisation and
self-assembling NMP-2003-3.4.2.1-2 Modelling and
design of multi-functional materials
NMP-2003-3.4.1.2-1 New knowledge on interfaces
for new applications Type of Instrument
Specific Targeted Research Project
(STREP) List of 9 participants
co-ordinator Warsaw University, Department
for Chemistry,Warsaw, Poland Jozef Stefan
Institute, Department of Theoretical Physics
,Ljubljana, Slovenia Czech Academy of Sciences,
Institute of Physics, Prague, Czech
Republic Martin Luther Universities, Department
of Chemistry, Halle, Germany Hungarian Academy
of Sciences Budapest, Hungary Institut de
Physique et Chimie des Matériaux de Strasbourg,
Centre National de la Recherche Scientifique,
Strsbourg, France University of Manchester,
Manchester, United Kingdom Universidad del
País Vasco, Bilbao, Spain Katholieke
Universiteit Leuven, Leuven, Belgium Industrial
collaboration Merck, Fotona The total
contribution to the project 795 person-months
and 1 777 000 Euro
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C
symmetry
-
SmC phase made of
chiral molecules
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Spontanous polarization - perpendicular to the
tilt plane
Ps up to 400nC/cm2
DOBAMC, 4nC/cm2

• Discovery of ferroelectric LC B. Meyer, L.
  Liebert, L. Strzelecki, P. Keller, J. Phys.
  (Paris) Lett. 36, L69 (1975)
• Discovery of antiferroelectric and ferrielectric
  LC A.D.L.Chandani, E.Gorecka, Y.Ouchi, H.Takezoe
  and A.Fukuda 'Antiferroelectric chiral smectic
  phase responsible for tristable switching in
  MHPOBC' Jap.J.App.Phys., 28, L1265, (1989)
  E.Górecka, A.D.L.Chandani, Y.Ouchi, H.Takezoe and
  A.Fukuda, "Molecular orientational structure in
  antiferroelectric, ferroelectric, ferrielectric,
  smectic liquid crystals phases as studied by
  conoscopic observations", Jap.J.Appl.Phys., 29
  131, (1990)

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rod-like molecules
bent-core molecules
Discovery of achiral ferroelectric LC T.
Niori,  T. Sekine, J. Watanabe, T. Furukawa and
H. Takezoe, J.Mater. Chem. 6, 1231 (1996)
More than 1000 papers related to banana molecules
!!!
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POLAR - objective materials combining fluidity
and sensitivity to electric field, suitable for
display technology, telecommunications,
non-linear optics, tuneable lasing or waveguiding
POLAR workplan

• Block 1 New materials - synthesis of new
  materials
• Block 2 From molecular to structural level
  establishing the link between molecular structure
  and nano-organisation
• Block 3 Optimised materials-molecular
  engineering toward optimised macroscopic
  properties and development of strategy for
  designing new materials for applications
• Block 4 Applications - photonic devices using
  optimised materials

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