Stability and Orientational Order of Gold Nanorods in Nematic Suspensions: A Small Angle X-ray Scattering Study

M. R. Thomas; J. E. Hallett; S. Klein; S. Mann; A. W. Perriman; R. M. Richardson

doi:10.1080/15421406.2015.1025204

Stability and Orientational Order of Gold Nanorods in Nematic Suspensions: A Small Angle X-ray Scattering Study

M. R. Thomas, J. E. Hallett, S. Klein, S. Mann, A. W. Perriman, R. M. Richardson^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Stable suspensions of gold nanorods in 4-cyano-4′-pentylbiphenyl (5CB) have been prepared by capping the nanoparticles with polyethylene glycol (PEG). Small angle X-ray scattering has been used to characterize the orientational order of the gold nanorods and the properties of any aggregates. It was found that the nanorods had a very high degree of orientational order with respect to the director of the 5CB matrix and this could be redirected by an applied electric field at 2kHz. Two different PEG molecular weights were investigated and it was found that the lower (1.9kDa) gave exceptionally high order parameters, above 0.9.

Original language	English
Pages (from-to)	44-50
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals
Volume	610
Issue number	1
DOIs	https://doi.org/10.1080/15421406.2015.1025204
Publication status	Published - 24 Mar 2015
Externally published	Yes

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title = "Stability and Orientational Order of Gold Nanorods in Nematic Suspensions: A Small Angle X-ray Scattering Study",

abstract = "Stable suspensions of gold nanorods in 4-cyano-4′-pentylbiphenyl (5CB) have been prepared by capping the nanoparticles with polyethylene glycol (PEG). Small angle X-ray scattering has been used to characterize the orientational order of the gold nanorods and the properties of any aggregates. It was found that the nanorods had a very high degree of orientational order with respect to the director of the 5CB matrix and this could be redirected by an applied electric field at 2kHz. Two different PEG molecular weights were investigated and it was found that the lower (1.9kDa) gave exceptionally high order parameters, above 0.9.",

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T1 - Stability and Orientational Order of Gold Nanorods in Nematic Suspensions

T2 - A Small Angle X-ray Scattering Study

AU - Thomas, M. R.

AU - Hallett, J. E.

AU - Klein, S.

AU - Mann, S.

AU - Perriman, A. W.

AU - Richardson, R. M.

PY - 2015/3/24

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N2 - Stable suspensions of gold nanorods in 4-cyano-4′-pentylbiphenyl (5CB) have been prepared by capping the nanoparticles with polyethylene glycol (PEG). Small angle X-ray scattering has been used to characterize the orientational order of the gold nanorods and the properties of any aggregates. It was found that the nanorods had a very high degree of orientational order with respect to the director of the 5CB matrix and this could be redirected by an applied electric field at 2kHz. Two different PEG molecular weights were investigated and it was found that the lower (1.9kDa) gave exceptionally high order parameters, above 0.9.

AB - Stable suspensions of gold nanorods in 4-cyano-4′-pentylbiphenyl (5CB) have been prepared by capping the nanoparticles with polyethylene glycol (PEG). Small angle X-ray scattering has been used to characterize the orientational order of the gold nanorods and the properties of any aggregates. It was found that the nanorods had a very high degree of orientational order with respect to the director of the 5CB matrix and this could be redirected by an applied electric field at 2kHz. Two different PEG molecular weights were investigated and it was found that the lower (1.9kDa) gave exceptionally high order parameters, above 0.9.

KW - Gold Nanorods

KW - Liquid Crystals

KW - Orientational Control

KW - Polymers

KW - Small Angle X-Ray Scattering

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DO - 10.1080/15421406.2015.1025204

M3 - Article

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JF - Molecular Crystals and Liquid Crystals

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ER -

Stability and Orientational Order of Gold Nanorods in Nematic Suspensions: A Small Angle X-ray Scattering Study

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