Polymer encaopsulation of CdE (E= S, Se) quantum dots ensembles via in situ radical polymerization in miniemulsion

A.C. Carvalho Esteves, de, A.M.M.V. Barros-Timmons, T. Monteiro, T. Trindade

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Cadmium sulfide and cadmium selenide/polymer nanocomposites were prepared via in-situ radical polymerization in miniemulsion. Organically capped CdE (E = S, Se) quantum dots (QDs) were used as the starting materials and ensembles of these dots were encapsulated with no need of further surface treatment. The use of two polymer matrices was investigated: polystyrene (PS) and poly(n-butyl acrylate) (PBA). In both cases, homogenous nanocomposites were obtained and their optical properties were investigated by visible absorption and photoluminescence spectroscopy. Quantum size effects were assigned to the nanocomposites, indicating the integrity of the individual QDs upon polymer encapsulation using the miniemulsion process.
LanguageEnglish
Pages766-771
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume5
Issue number5
DOIs
StatePublished - 2005

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Free radical polymerization
Semiconductor quantum dots
Nanocomposites
nanocomposites
Polymers
polymerization
quantum dots
polymers
cadmium selenides
Cadmium sulfide
Photoluminescence spectroscopy
cadmium sulfides
selenides
Polystyrenes
acrylates
surface treatment
Polymer matrix
Absorption spectroscopy
Encapsulation
Cadmium

Cite this

@article{3043bce3ad784a579398f331711b8922,
title = "Polymer encaopsulation of CdE (E= S, Se) quantum dots ensembles via in situ radical polymerization in miniemulsion",
abstract = "Cadmium sulfide and cadmium selenide/polymer nanocomposites were prepared via in-situ radical polymerization in miniemulsion. Organically capped CdE (E = S, Se) quantum dots (QDs) were used as the starting materials and ensembles of these dots were encapsulated with no need of further surface treatment. The use of two polymer matrices was investigated: polystyrene (PS) and poly(n-butyl acrylate) (PBA). In both cases, homogenous nanocomposites were obtained and their optical properties were investigated by visible absorption and photoluminescence spectroscopy. Quantum size effects were assigned to the nanocomposites, indicating the integrity of the individual QDs upon polymer encapsulation using the miniemulsion process.",
author = "{Carvalho Esteves, de}, A.C. and A.M.M.V. Barros-Timmons and T. Monteiro and T. Trindade",
year = "2005",
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language = "English",
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pages = "766--771",
journal = "Journal of Nanoscience and Nanotechnology",
issn = "1533-4880",
publisher = "American Scientific Publishers",
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}

Polymer encaopsulation of CdE (E= S, Se) quantum dots ensembles via in situ radical polymerization in miniemulsion. / Carvalho Esteves, de, A.C.; Barros-Timmons, A.M.M.V.; Monteiro, T.; Trindade, T.

In: Journal of Nanoscience and Nanotechnology, Vol. 5, No. 5, 2005, p. 766-771.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Polymer encaopsulation of CdE (E= S, Se) quantum dots ensembles via in situ radical polymerization in miniemulsion

AU - Carvalho Esteves, de,A.C.

AU - Barros-Timmons,A.M.M.V.

AU - Monteiro,T.

AU - Trindade,T.

PY - 2005

Y1 - 2005

N2 - Cadmium sulfide and cadmium selenide/polymer nanocomposites were prepared via in-situ radical polymerization in miniemulsion. Organically capped CdE (E = S, Se) quantum dots (QDs) were used as the starting materials and ensembles of these dots were encapsulated with no need of further surface treatment. The use of two polymer matrices was investigated: polystyrene (PS) and poly(n-butyl acrylate) (PBA). In both cases, homogenous nanocomposites were obtained and their optical properties were investigated by visible absorption and photoluminescence spectroscopy. Quantum size effects were assigned to the nanocomposites, indicating the integrity of the individual QDs upon polymer encapsulation using the miniemulsion process.

AB - Cadmium sulfide and cadmium selenide/polymer nanocomposites were prepared via in-situ radical polymerization in miniemulsion. Organically capped CdE (E = S, Se) quantum dots (QDs) were used as the starting materials and ensembles of these dots were encapsulated with no need of further surface treatment. The use of two polymer matrices was investigated: polystyrene (PS) and poly(n-butyl acrylate) (PBA). In both cases, homogenous nanocomposites were obtained and their optical properties were investigated by visible absorption and photoluminescence spectroscopy. Quantum size effects were assigned to the nanocomposites, indicating the integrity of the individual QDs upon polymer encapsulation using the miniemulsion process.

U2 - 10.1166/jnn.2005.090

DO - 10.1166/jnn.2005.090

M3 - Article

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EP - 771

JO - Journal of Nanoscience and Nanotechnology

T2 - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

SN - 1533-4880

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