Phase-dependence of gold nanoparticle dispersibility in blue phase and chiral nematic liquid crystals

被引：18

作者：

Yoshida, Hiroyuki ^{[1
,2
]}

Inoue, Kenta ^{[1
]}

Kubo, Hitoshi ^{[1
]}

Ozaki, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Div Elect Elect & Informat Engn, Suita, Osaka 5650871, Japan

[2] Japan Sci & Technol Corp JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

OPTICAL MATERIALS EXPRESS | 2013年 / 3卷 / 06期

关键词：

OPTICAL-PROPERTIES; BULK METAMATERIAL; DISCLINATIONS; DISPLAYS; NANORODS; INDEX;

D O I：

10.1364/OME.3.000842

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the dispersibility of spherical gold nanoparticles in three phases of a chiral liquid crystal - blue phase I, blue phase II and the cholesteric phase - by UV-visible spectroscopy and optical microscopy. UV-visible spectroscopy revealed that a gradual red-shift and broadening of local surface plasmon resonance occur in the blue I and cholesteric phases. Moreover, optical microscopy revealed a clear difference in the aggregation behavior of nanoparticles depending on the phase, with uniform textures being observed in the blue II phase, and agglomerates forming in blue I and cholesteric phases. The difference in the dispersibility of nanoparticles is discussed in terms of the structure of each liquid crystal phase. (C) 2013 Optical Society of America

引用

页码：842 / 852

页数：11

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