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Antiferroelectric chiral smectic liquid crystals
- A. Fukuda, Y. Takanishi, T. Isozaki, K. Ishikawa, H. Takezoe
- Physics
- 1994
In a brief history of the discovery of antiferroelectricity in liquid crystals, the important role played by tristable switching, i.e. an electric field induced phase transition from…
Distinct ferroelectric smectic liquid crystals consisting of banana shaped achiral molecules
- Teruki Niori, T. Sekine, J. Watanabe, T. Furukawa, H. Takezoe
- Physics, Chemistry
- 1996
The synthesis of a banana-shaped molecule is reported and it is found that the smectic phase which it forms is biaxial with the molecules packed in the best direction into a layer. Because of this…
Bent-Core Liquid Crystals: Their Mysterious and Attractive World
- H. Takezoe, Y. Takanishi
- Chemistry, Physics
- 8 February 2006
Structures and properties of liquid crystalline phases formed by bent-core molecules are reviewed. At least eight phases designated as B1–B8 have been found, being unambiguously distinguished from…
Stable Amorphous Blue Phase of Bent-Core Nematic Liquid Crystals Doped with a Chiral Material
- Stefanie Taushanoff, K. Le, A. Jákli
- Materials Science, Physics
- 6 July 2010
We report an induction of the blue phase III (BPIII) at a relatively low and wide (over 20 °C) temperature range in nematogenic achiral bent-core liquid crystals doped with a high twisting power…
Enhanced out-coupling factor of microcavity organic light-emitting devices with irregular microlens array.
- Jongsun Lim, S. Oh, Byoungchoo Park
- PhysicsOptics express
- 10 July 2006
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Liquid crystalline amorphous blue phase and its large electrooptical Kerr effect
- K. Le, S. Aya, H. Takezoe
- Physics, Materials Science
- 14 February 2011
An amorphous blue phase III with low and wide thermal range (∼20 °C) including room temperature is induced by doping a bent-core nematic with a strong chiral material. We confirm that the…
Enhancement of Light Extraction from Organic Light-Emitting Diodes with Two-Dimensional Hexagonally Nanoimprinted Periodic Structures Using Sequential Surface Relief Grating
- Soon Moon Jeong, F. Araoka, G. Suzaki
- Physics
- 13 June 2008
Electric characteristics of organic light-emitting diodes (OLEDs) with two-dimensional hexagonally nanoimprinted periodic structures were investigated, and enhanced light extraction from this device…
Experimental Studies on Reflection Spectra in Monodomain Cholesteric Liquid Crystal Cells: Total Reflection, Subsidiary Oscillation and Its Beat or Swell Structure
- H. Takezoe, Y. Ouchi, M. Hara, A. Fukuda, E. Kuze
- Physics
- 20 July 1983
Many optical properties are presented here in the reflection spectra for monodomain cholesterics of various cell thicknesses at various angles of incidence. It is reported for the first time that…
Light extraction from organic light-emitting diodes enhanced by spontaneously formed buckles
- Won Hoe Koo, Soon Moon Jeong, H. Takezoe
- Physics
- 1 April 2010
Organic light-emitting diodes featuring layers with a spontaneously formed buckled geometry are demonstrated to offer at least a twofold improvement in light extraction efficiency across the entire…
Chiral Superstructure Mesophases of Achiral Bent‐Shaped Molecules – Hierarchical Chirality Amplification and Physical Properties
- K. Le, H. Takezoe, F. Araoka
- Physics, ChemistryAdvanced materials
- 1 July 2017
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