Ultranarrow PbS Nanorod-Nematic Liquid Crystal Blend for Enhanced Electro-optic Properties

被引：37

作者：

Kundu, Sudarshan ^{[2
]}

Hill, Jonathan P. ^{[3
]}

Richards, Gary J. ^{[3
]}

Ariga, Katsuhiko ^{[3
,4
]}

Khan, Ali Hossain ^{[1
]}

Thupakula, Umamahesh ^{[1
]}

Acharya, Somobrata ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Ctr Adv Mat, Kolkata 700032, India

[2] Tokyo Univ Sci, Inst Liquid Crystal, Onoda, Yamaguchi 7560884, Japan

[3] Natl Inst Mat Sci, World Premier Int WPI Res Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan

[4] CREST, JST, Tsukuba, Ibaraki 3050044, Japan

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 10期

基金：

日本科学技术振兴机构;

关键词：

ultranarrow PbS rods; nematic liquid crystal; blend; dipole moment; electro-optic properties; ZNSE NANORODS; NANOWIRES; NANOPARTICLES; NANOCRYSTALS; DEVICES; PHASE; ORDER;

D O I：

10.1021/am100599y

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Dispersion of ultranarrow PbS nanorods of 1.8 nm diameter, encapsulated by a fluidlike soft trioctylamine layer, in the nematic liquid crystal (LC ZLI-4792) results in a novel soft matter type blend with enhanced electro-optic properties. Despite having a cubic rock-salt structure, the ultranarrow rods possess a finite inherent dipole moment and show excellent miscibility in the LC host. The local ordering significantly affects the global ordering of the blend allowing a more rapid response of the electro-optic properties. These unique blends are obtainable only by doping with one-dimensional nanorods of ultrasmall dimensions and illustrates how a nonmesogenic element can be introduced within a liquid crystal for improvement of the switching properties of the blend. The unique blend could be a model for fundamental conceptual advances in general understanding of interaction behavior, leading consequently to a significant technological advancement for superior device fabrications.

引用

页码：2759 / 2766

页数：8

共 36 条

[1] Ultra narrow PbS nanorods with lntense fluorescence [J].