Thermodynamically Stable Dispersions of Quantum Dots in a Nematic Liquid Crystal

被引：77

作者：

Prodanov, Maksym F. ^{[1
]}

Pogorelova, Nataliya V. ^{[1
]}

Kryshtal, Alexander P. ^{[1
]}

Klymchenko, Andrey S. ^{[2
]}

Mely, Yves ^{[2
]}

Semynozhenko, Vladimir P. ^{[1
]}

Krivoshey, Alexander I. ^{[1
]}

Reznikov, Yurii A. ^{[3
]}

Yarmolenko, Sergey N. ^{[4
]}

Goodby, John W. ^{[5
]}

Vashchenko, Valerii V. ^{[1
]}

机构：

[1] NAS Ukraine, State Sci Inst Inst Single Crystals, UA-61001 Kharkov, Ukraine

[2] Univ Strasbourg, Fac Pharm, UMR CNRS 7213, Strasbourg, France

[3] NAS Ukraine, Inst Phys, UA-03039 Kiev, Ukraine

[4] N Carolina Agr & Tech State Univ, Greensboro, NC 27411 USA

[5] Univ York, Dept Chem, York YO10 5DD, N Yorkshire, England

来源：

LANGMUIR | 2013年 / 29卷 / 30期

基金：

英国工程与自然科学研究理事会;

关键词：

CHEMICAL-COMPOSITION; GOLD NANOPARTICLES; FLUORESCENCE; BEHAVIOR; NANOCOMPOSITES; ALIGNMENT; NANORODS; SHAPE;

D O I：

10.1021/la401475b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using transmittance electron microscopy, fluorescence and polarizing optical microscopy, optical spectroscopy, and fluorescent correlation spectroscopy, it was shown that CdSe/ZnS quantum dots coated with a specifically designed surfactant were readily dispersed in nematic liquid crystal (LC) to form stable colloids. The mixture of an alkyl phosphonate and a dendritic surfactant, where the constituent molecules contain promesogenic units, enabled the formation of thermodynamically stable colloids that were stable for at least 1 year. Stable colloids are formed due to minimization of the distortion of the LC ordering around the quantum dots.

引用

页码：9301 / 9309

页数：9

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