scholarly journals Ultraviolet light screen using cholesteric liquid crystal capsules on the basis of selective reflection

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25471-25476
Author(s):  
Heemuk Oh ◽  
Hirotugu Kikuchi ◽  
Ji Hyun Lee ◽  
Su Ji Kim ◽  
Jun Bae Lee ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Ultraviolet Light ◽  
Cholesteric Liquid Crystal ◽  
Ultraviolet Rays ◽  
Selective Reflection

When the prepared cholesteric liquid crystal microcapsule is applied to the skin, it can protect the skin by selectively reflecting only ultraviolet rays in sunlight like sunscreen cosmetics.

scholarly journals Front Cover: Chiral, Thermally Irreversible and Quasi‐Stealth Photochromic Dopant to Control Selective Reflection Wavelength of Cholesteric Liquid Crystal (ChemPhysChem 13/2020)

ChemPhysChem ◽  
2020 ◽  
Vol 21 (13) ◽  
pp. 1340-1340
Author(s):  
Yoshihisa Kurosaki ◽  
Toshiya Sagisaka ◽  
Tomoo Matsushima ◽  
Takashi Ubukata ◽  
Yasushi Yokoyama
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Selective Reflection ◽  
Front Cover

scholarly journals Chiral, Thermally Irreversible and Quasi‐Stealth Photochromic Dopant to Control Selective Reflection Wavelength of Cholesteric Liquid Crystal

ChemPhysChem ◽  
2020 ◽  
Vol 21 (13) ◽  
pp. 1343-1344
Author(s):  
Yoshihisa Kurosaki ◽  
Toshiya Sagisaka ◽  
Tomoo Matsushima ◽  
Takashi Ubukata ◽  
Yasushi Yokoyama
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Selective Reflection

Effects of Anthraquinone Dye Aggregation on Selective Reflection Spectra of Cholesteric Liquid Crystal

2008 ◽  
Vol 496 (1) ◽  
pp. 202-211 ◽  
Author(s):  
V. M. Pergamenshchik ◽  
R. M. Vasyuta ◽  
O. P. Boiko ◽  
V. G. Nazarenko ◽  
L. N. Zavora ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Reflection Spectra ◽  
Selective Reflection ◽  
Anthraquinone Dye ◽  
Dye Aggregation

Synthesis and Characterization of a Cholesteric Liquid Crystal Cholesteryl Nonanoate

2010 ◽  
Vol 428-429 ◽  
pp. 94-97 ◽  
Author(s):  
Yuan Ming Huang ◽  
Ye Tang Guo ◽  
Qing Lan Ma ◽  
Wei Wei Liu
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Synthesis And Characterization ◽  
Temperature Dependent ◽  
Scanning Calorimetry ◽  
Selective Reflection ◽  
Cholesteric Phase ◽  
Polarized Optical Microscopy ◽  
Clearing Point

A cholesteric liquid crystal cholesteryl nonanoate was synthesized and then characterized by means of differential scanning calorimetry and polarized optical microscopy. As temperature decreased from its clearing point, cholesteric phase was formed for cholesteryl nonanoate and accompanied by continuous evolution of colors in the focal conic textures. Furthermore, beautiful spherulite crystals were observed to grow out of the cholesteric phase as the crystallization continued. The evolution of the colors in recorded textures was contributed to temperature-dependent selective reflection of the liquid crystal.

Thermal and electrical wavelength tuning of Bragg reflection with ultraviolet light absorbers in polymer-stabilized cholesteric liquid crystals

2018 ◽  
Vol 6 (45) ◽  
pp. 12377-12385 ◽  
Author(s):  
Amid Ranjkesh ◽  
Tae-Hoon Yoon
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Electric Field ◽  
Ultraviolet Light ◽  
Bragg Reflection ◽  
Cholesteric Liquid Crystal ◽  
Wavelength Tuning ◽  
Cholesteric Liquid Crystals ◽  
Light Absorbers ◽  
Polymer Stabilized

A dual thermal and electrical polymer-stabilized cholesteric liquid crystal has been fabricated by using ultraviolet light absorbers. The Bragg reflection can be autonomously controlled by temperature and manually by an electric field.

Synthesis and properties of cholesteric liquid crystal elastomers with selective reflection centred on D(+)-camphoric acid

2020 ◽  
Vol 47 (11) ◽  
pp. 1591-1603 ◽  
Author(s):  
Ya-Ru Ma ◽  
Dong-Xue Wang ◽  
Yue-Hua Cong ◽  
Xiao-Zhi He ◽  
Bao-Yan Zhang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Selective Reflection ◽  
Liquid Crystal Elastomers ◽  
Camphoric Acid

Chiral, Thermally Irreversible and Quasi‐Stealth Photochromic Dopant to Control Selective Reflection Wavelength of Cholesteric Liquid Crystal

ChemPhysChem ◽  
2020 ◽  
Vol 21 (13) ◽  
pp. 1375-1383
Author(s):  
Yoshihisa Kurosaki ◽  
Toshiya Sagisaka ◽  
Tomoo Matsushima ◽  
Takashi Ubukata ◽  
Yasushi Yokoyama
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Selective Reflection
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