Polar Switching in a Lyotropic Columnar Nematic Liquid Crystal Made of Bowl-Shaped Molecules

被引：31

作者：

Guilleme, Julia ^{[1
]}

Cavero, Emma ^{[2
]}

Sierra, Teresa ^{[2
]}

Ortega, Josu ^{[3
]}

Folcia, Cesar L. ^{[4
]}

Etxebarria, Jesus ^{[4
]}

Torres, Tomas ^{[1
]}

Gonzalez-Rodriguez, David ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain

[2] Univ Zaragoza, CSIC, ICMA, Dept Quim Orgon,Fac Ciencias, E-50009 Zaragoza, Spain

[3] Univ Basque Country, Fac Ciencia & Tecnol, Dept Fis Aplicada 2, Bilbao 48080, Spain

[4] Univ Basque Country, Fac Ciencia & Tecnol, Dept Fis Mat Condensada, Bilbao 48080, Spain

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 29期

基金：

欧洲研究理事会;

关键词：

columnar nematic mesophases; ferroelectricity; lyotropics; second-harmonic generation; subphthalocyanines; SEMICONDUCTORS; PHASE;

D O I：

10.1002/adma.201500238

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A polar response in a lyotropic columnar nematic material is reported. The material accommodates bowl-shaped molecules with strong axial dipole moments in column segments without head-to-tail invariance. Optical second-harmonic-generation methods confirm that the nematic columns align unidirectionally under an applied electric field and the material develops remnant macroscopic polarization observable for hours. The switching takes place by a flip of the columns. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：4280 / 4284

页数：5

共 38 条

[1] Columnar liquid crystal as a unique ferroelectric liquid crystal [J].

Araoka, Fumito ;

Takezoe, Hideo .

JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53 (01)

[2] High-Optical-Quality Ferroelectric Film Wet-Processed from a Ferroelectric Columnar Liquid Crystal as Observed by Non-linear-Optical Microscopy [J].

Araoka, Fumito ;

Masuko, Shiori ;

Kogure, Akinori ;

Miyajima, Daigo ;

Aida, Takuzo ;

Takezoe, Hideo .

ADVANCED MATERIALS, 2013, 25 (29) :4014-4017

[3] Discotic nematic liquid crystals: science and technology [J].

Bisoyi, Hari Krishna ;

Kumar, Sandeep .

CHEMICAL SOCIETY REVIEWS, 2010, 39 (01) :264-285

[4] Ferroelectric order in liquid crystal phases of polar disk-shaped ellipsoids [J].

Bose, Tushar Kanti ;

Saha, Jayashree .

PHYSICAL REVIEW E, 2014, 89 (05)

[5] Using hydrogen bonds to direct the assembly of crowded aromatics [J].

Bushey, ML ;

Nguyen, TQ ;

Zhang, W ;

Horoszewski, D ;

Nuckolls, C .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (41) :5446-5453

[6]

Bushey ML, 2002, ANGEW CHEM INT EDIT, V41, P2828, DOI 10.1002/1521-3773(20020802)41:15<2828::AID-ANIE2828>3.0.CO

[7]

2-T

[8]

De Luca G., 2011, ADV FUNCT MATER, V21, P1206

[9] Quasi Temperature Independent Electron Mobility in Hexagonal Columnar Mesophases of an H-Bonded Benzotristhiophene Derivative [J].

Demenev, Andrey ;

Eichhorn, S. Holger ;

Taerum, Tyler ;

Perepichka, Dmitrii F. ;

Patwardhan, Sameer ;

Grozema, Ferdinand C. ;

Siebbeles, Laurens D. A. ;

Klenkler, Richard .

CHEMISTRY OF MATERIALS, 2010, 22 (04) :1420-1428

[10]

Eichhorn H, 1998, ADV MATER, V10, P419, DOI 10.1002/(SICI)1521-4095(199803)10:5<419::AID-ADMA419>3.0.CO

← 1 2 3 4 →