Effect of nanoparticle composition on the performance of photorefractive polymers

F. Aslam; J. Stevenson-Hill; D. J. Binks; S. Daniels; N. L. Pickett; P. O'Brien

doi:10.1016/j.chemphys.2007.02.011

Effect of nanoparticle composition on the performance of photorefractive polymers

F. Aslam, J. Stevenson-Hill, D. J. Binks, S. Daniels, N. L. Pickett, P. O'Brien

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

Abstract

A photorefractive polymer composite has been sensitized by three different types of CdSe/ZnS core/shell nanoparticles, which are of similar sizes and nominally of the same composition but different in detail. The composites comprise the nanoparticles, poly(N-vinylcarbazole) and the electro-optic chromophore 1-(2-ethylhexyloxy)-2,5-dimethyl-4-(4nitrophenylazo) benzene. The nanoparticles are characterized by elemental analysis, absorption and photoluminescence spectroscopy, transmission electron microscopy and powder X-ray diffraction. The electro-optic response of the composites is measured by transmission ellipsometry, photorefractivity is confirmed by two-beam coupling, and photorefractive performance is determined by degenerate four wave mixing. The results indicate that, even for ostensibly similar nanoparticles, small differences in composition have a significant effect on the photorefractive performance. © 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	45-52
Number of pages	7
Journal	Chemical Physics
Volume	334
Issue number	1-3
DOIs	https://doi.org/10.1016/j.chemphys.2007.02.011
Publication status	Published - 20 Apr 2007

Keywords

Nanoparticles
Photorefractive polymers

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10.1016/j.chemphys.2007.02.011

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title = "Effect of nanoparticle composition on the performance of photorefractive polymers",

abstract = "A photorefractive polymer composite has been sensitized by three different types of CdSe/ZnS core/shell nanoparticles, which are of similar sizes and nominally of the same composition but different in detail. The composites comprise the nanoparticles, poly(N-vinylcarbazole) and the electro-optic chromophore 1-(2-ethylhexyloxy)-2,5-dimethyl-4-(4nitrophenylazo) benzene. The nanoparticles are characterized by elemental analysis, absorption and photoluminescence spectroscopy, transmission electron microscopy and powder X-ray diffraction. The electro-optic response of the composites is measured by transmission ellipsometry, photorefractivity is confirmed by two-beam coupling, and photorefractive performance is determined by degenerate four wave mixing. The results indicate that, even for ostensibly similar nanoparticles, small differences in composition have a significant effect on the photorefractive performance. {\textcopyright} 2007 Elsevier B.V. All rights reserved.",

keywords = "Nanoparticles, Photorefractive polymers",

author = "F. Aslam and J. Stevenson-Hill and Binks, {D. J.} and S. Daniels and Pickett, {N. L.} and P. O'Brien",

year = "2007",

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doi = "10.1016/j.chemphys.2007.02.011",

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TY - JOUR

T1 - Effect of nanoparticle composition on the performance of photorefractive polymers

AU - Aslam, F.

AU - Stevenson-Hill, J.

AU - Binks, D. J.

AU - Daniels, S.

AU - Pickett, N. L.

AU - O'Brien, P.

PY - 2007/4/20

Y1 - 2007/4/20

N2 - A photorefractive polymer composite has been sensitized by three different types of CdSe/ZnS core/shell nanoparticles, which are of similar sizes and nominally of the same composition but different in detail. The composites comprise the nanoparticles, poly(N-vinylcarbazole) and the electro-optic chromophore 1-(2-ethylhexyloxy)-2,5-dimethyl-4-(4nitrophenylazo) benzene. The nanoparticles are characterized by elemental analysis, absorption and photoluminescence spectroscopy, transmission electron microscopy and powder X-ray diffraction. The electro-optic response of the composites is measured by transmission ellipsometry, photorefractivity is confirmed by two-beam coupling, and photorefractive performance is determined by degenerate four wave mixing. The results indicate that, even for ostensibly similar nanoparticles, small differences in composition have a significant effect on the photorefractive performance. © 2007 Elsevier B.V. All rights reserved.

AB - A photorefractive polymer composite has been sensitized by three different types of CdSe/ZnS core/shell nanoparticles, which are of similar sizes and nominally of the same composition but different in detail. The composites comprise the nanoparticles, poly(N-vinylcarbazole) and the electro-optic chromophore 1-(2-ethylhexyloxy)-2,5-dimethyl-4-(4nitrophenylazo) benzene. The nanoparticles are characterized by elemental analysis, absorption and photoluminescence spectroscopy, transmission electron microscopy and powder X-ray diffraction. The electro-optic response of the composites is measured by transmission ellipsometry, photorefractivity is confirmed by two-beam coupling, and photorefractive performance is determined by degenerate four wave mixing. The results indicate that, even for ostensibly similar nanoparticles, small differences in composition have a significant effect on the photorefractive performance. © 2007 Elsevier B.V. All rights reserved.

KW - Nanoparticles

KW - Photorefractive polymers

U2 - 10.1016/j.chemphys.2007.02.011

DO - 10.1016/j.chemphys.2007.02.011

M3 - Article

SN - 0301-0104

VL - 334

SP - 45

EP - 52

JO - Chemical Physics

JF - Chemical Physics

IS - 1-3

ER -

Effect of nanoparticle composition on the performance of photorefractive polymers

Abstract

Keywords

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