The effect of graphene on liquid-crystalline blue phases

被引：38

作者：

Lavric, M. ^{[1
]}

Tzitzios, V. ^{[2
]}

Kralj, S. ^{[3
]}

Cordoyiannis, G. ^{[1
,4
]}

Lelidis, I. ^{[4
]}

Nounesis, G. ^{[5
]}

Georgakilas, V. ^{[2
]}

Amenitsch, H. ^{[6
]}

Zidansek, A. ^{[1
,7
]}

Kutnjak, Z. ^{[1
,7
]}

机构：

[1] Jozef Stefan Inst, Dept Condensed Matter Phys, Ljubljana 1000, Slovenia

[2] Natl Ctr Sci Res Demokritos, Inst Mat Sci, Aghia Paraskevi 15310, Greece

[3] Univ Maribor, Fac Nat Sci & Math, Maribor 2000, Slovenia

[4] Univ Athens, Dept Phys, Athens 15784, Greece

[5] Natl Ctr Sci Res Demokritos, Biomol Phys Lab, Aghia Paraskevi 15310, Greece

[6] Graz Univ Technol, Inst Inorgan Chem, A-8010 Graz, Austria

[7] Jozef Stefan Int Postgrad Sch, Ljubljana 1000, Slovenia

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 14期

关键词：

NANOPARTICLES; STABILIZATION; RANGE;

D O I：

10.1063/1.4824424

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The stabilization of liquid-crystalline blue phases is recently attracting considerable interest because of the envisioned applications in fast optical displays and tunable photonic crystals. We report on the effect of surface-functionalized graphene nanosheets on the blue phase range of a chiral liquid crystal. Calorimetric and optical measurements, reproducible on heating and cooling, demonstrate that the resulting soft nanocomposite exhibits an increased blue phase temperature stability range for a minute concentration of dispersed graphene. The impact is stronger on the ordered, cubic structured blue phase I. These findings suggest that anisotropic nanoparticles may be of great usefulness for stabilizing blue phases. (C) 2013 AIP Publishing LLC.

引用

页数：4

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