Dean Lemieux joined Waterloo on July 1, 2015 from Queen's University, where he was a professor in the Department of Chemistry and Associate Dean of Research for the Faculty of Arts and Science.
In addition to his administrative duties, he remains an active researcher, designing advanced liquid crystal materials found in high-performance microdisplays.
Phone: (519) 888-4567 ext. 30353
Office: ESC 252
Ferroelectric liquid crystals
Chiral organic materials
Liquid crystals for display applications
Professor Lemieux's lab bridges the fields of organic synthesis, physical organic chemistry and condensed matter physics to create new liquid crystal materials that are used in fast switching ferroelectric and electroclinic LCD applications by taking advantage of their inherent structure-property relationships.
His research has resulted in a better understanding of how chirality (a molecule’s "handedness") propagates in smectic liquid crystal phases, which is leveraged to produce ferroelectric LCDs with faster response times, and in the development of new liquid crystal materials for the formulation of defect-free ferroelectric and electroclinic LCD applications.
His group is one of only a few chemistry groups in the world with the expertise necessary to synthesize new liquid crystal materials, characterize their physical properties, and evaluate their potential as active components of electro-optical and photonic devices.
Dean Lemieux has published more than 95 peer-reviewed articles and reviews in this field.
- M. Thompson, C. Carkner, N. J. Mosey, N. Kapernaum and R.P. Lemieux “Tuning the Mesogenic Properties of Phenoxy-Terminated Smectic Liquid Crystals: The Effect of Fluoro Substitution.” Soft Matter, 2015, 11, 3860.
- K.M. Mulligan, A. Bogner, Q. Song, C.P.J. Schubert, F. Giesselmann and R.P. Lemieux “Design of liquid crystals with ‘de Vries-like’ properties: The effect of carbosilane nanosegregation in 5-phenyl-1,3,4-thiadiazole mesogens.” J. Mater. Chem. C, 2014, 2, 8270.
- C.P.J. Schubert, A. Bogner, J.H. Porada, K. Ayub, T. Andrea, F. Giesselmann and R.P. Lemieux “Design of Liquid Crystals with ‘de Vries-Like’ Properties: Carbosilane-Terminated 5-Phenylpyrimidine Mesogens Suitable for Chevron-Free FLC Formulations.” J. Mater. Chem. C, 2014, 2, 4581.
- Q. Cui and R.P. Lemieux “Ferroelectric liquid crystals induced by dopants with axially chiral 2,2’-spirobiindan-1,1’-dione cores: Substituent effect on the polarization power.” J. Mater. Chem. C, 2013, 1, 1011
- T.-C. Lin, I.R. Nemitz, C.J. McGrath, C.P.J. Schubert, H. Yokohama, R.P. Lemieux and C. Rosenblatt “Nematic molecular core flexibility and chiral induction.” Phys. Rev. E, 2013, 88, 042501.
R.P. Lemieux and L. Dinescu "Compounds and Methods for Doping Liquid Crystal Hosts." U.S. Patent No. 5,989,451. Issued November 23, 1999.
Awards and Distinctions
Samsung Mid-Career Award, International Liquid Crystal Society, 2012.
Chemistry Graduating Class Award for Teaching Excellence, Queen's University, 2007.
Visiting Lectureship, Chemistry Research Promotion Center, National Science Council of Taiwan, 2006.
W. J. Barnes Teaching Excellence Award for the Arts and Science Undergraduate Society, Queen’s University, 2005.
Ontario Premier's Research Excellence Award, 2000.
Japanese Government Research Award for Foreign Specialist, Science and Technology Agency of Japan, 1999.
Chancellor’s Research Award, Queen’s University, 1999.
Chemistry Graduating Class Award for Teaching Excellence, Queen's University, 1997.
CNC/IUPAC Travel Award, 1997.
Ichikizaki Fund for Young Chemists Travel Awards, 1994, 1996.
- International Liquid Crystal Society, since 1994; member of the Board of Directors since 2010
- Chemical Institute of Canada; Organic Division, since 1992
- American Chemical Society; Organic Division, since 1987
- 1989 PhD Chemistry, University of Illinois, Urbana, Illinois
- 1984 BA Chemistry with high honours, Colgate University, Hamilton, New York