Photoinduced Nematic - Cholesteric Structural Transitions in Liquid Crystal Cells with Homeotropic Anchoring

被引：15

作者：

Gvozdovskyy, Igor ^{[1
]}

Yaroshchuk, Oleg ^{[1
]}

Serbina, Marina ^{[2
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Phys, Dept Opt Quantum Eletron, UA-03680 Kiev, Ukraine

[2] Natl Acad Sci Ukraine, Inst Single Crystals, Inst Scintillat Mat STC, UA-03680 Kiev, Ukraine

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2011年 / 546卷

关键词：

Chiral dopant; cholesteric; compensated nematic; fingerprint; structural transition;

D O I：

10.1080/15421406.2011.571161

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By doping a nematic liquid crystal with two chiral agents of opposite handedness and distinctly different spectral ranges of molecular absorption a photoinduced structural transition from the nematic (non-helical) to cholesteric (helical) state was realized, as well as a transition between two cholesteric states with the opposite handedness. This finding extends our knowledge about formation of cholesteric structures and opens new horizons for application of cholesteric liquid crystals.

引用

页码：202 / 208

页数：7

共 15 条

[1] Photochromism in mixtures of liquid crystalline chiral copolymers with a photosensitive chiral dopant [J].

Bobrovsky, AY ;

Boiko, NI ;

Shibaev, VP .

LIQUID CRYSTALS, 1998, 25 (06) :679-687

[2] Light-controlled change in the helical pitch and broadband tunable cholesteric liquid-crystal lasers [J].

Chilaya, G. S. .

CRYSTALLOGRAPHY REPORTS, 2006, 51 (Suppl 1) :S108-S118

[3] CHOLESTERIC DOMAIN TEXTURE [J].

CLADIS, PE ;

KLEMAN, M .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1972, 16 (1-2) :1-&

[4]

de Gennes P. G., 1993, The Physics of Liquid Crystals, V2nd ed

[5]

DEMUS D, 1980, TEXTURES LIQUID CRYS

[6] Dynamic pattern formation and beam-steering characteristics of cholesteric gratings [J].

Fuh, AYG ;

Lin, CH ;

Huang, CY .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2002, 41 (01) :211-218

[7] Reflective cholesteric liquid crystal polarizers and their applications [J].

Li, L ;

Li, JF ;

Fan, BS ;

Jiang, YQ ;

Faris, SM .

DISPLAY DEVICES AND SYSTEMS II, 1998, 3560 :33-40

[8] Electrically tunable color for full-color reflective displays [J].

Li, Z ;

Desai, P ;

Akins, R ;

Ventouris, G ;

Voloschenko, D .

LIQUID CRYSTAL MATERIALS, DEVICES, AND APPLICATIONS VIII, 2002, 4658 :7-13

[9]

Reznikov Y., 1999, MOL CRYST LIQ CRYST, V330, P375, DOI [10.1080/10587259908025612, DOI 10.1080/10587259908025612]

[10]

SETARO A, 2005, THESIS U NAPOLI FEDE, P31

← 1 2 →