Synthesis and characterization of CdS quantum dots in polystyrene microbeads

Yang Li, Eric Chun Yeung Liu, Nigel Pickett, Peter J. Skabara, Siobhan S. Cummins, Stephen Ryley, Andrew J. Sutherland, Paul O'Brien

Research output: Contribution to journalArticle

108 Citations (Scopus)

Abstract

Polystyrene microbeads doped with highly luminescent CdS quantum dots (QDs) have been prepared. Polystyrene particles with diameters ranging from 100 nm to 500 mm were prepared by a suspension polymerization method and with different loadings of QDs. The resulting organic-inorganic microspheres have been characterized by FTIR, elemental analysis and SEM. Confocal microscopy and photoluminescence studies proved that the CdS nanoparticles were evenly distributed throughout the polystyrene spheres. The QDcontaining composites have similar optical properties to isolated CdS QDs. The thermal decomposition of the hybrid materials occurred at higher temperature than for the parent organic materials.
LanguageEnglish
Pages1238-1243
Number of pages5
JournalJournal of Materials Chemistry
Volume15
Issue number12
DOIs
Publication statusPublished - 2005

Fingerprint

Polystyrenes
Semiconductor quantum dots
Confocal microscopy
Hybrid materials
Microspheres
Suspensions
Photoluminescence
Pyrolysis
Optical properties
Polymerization
Nanoparticles
Scanning electron microscopy
Composite materials
Chemical analysis
Temperature

Keywords

  • oleic-acid
  • polymer composites
  • optical-properties
  • nanocrystals
  • ftir
  • nanoparticles
  • nanocomposites
  • monolayers
  • clusters
  • crystal

Cite this

Li, Y., Liu, E. C. Y., Pickett, N., Skabara, P. J., Cummins, S. S., Ryley, S., ... O'Brien, P. (2005). Synthesis and characterization of CdS quantum dots in polystyrene microbeads. Journal of Materials Chemistry, 15(12), 1238-1243. https://doi.org/10.1039/b412317d
Li, Yang ; Liu, Eric Chun Yeung ; Pickett, Nigel ; Skabara, Peter J. ; Cummins, Siobhan S. ; Ryley, Stephen ; Sutherland, Andrew J. ; O'Brien, Paul. / Synthesis and characterization of CdS quantum dots in polystyrene microbeads. In: Journal of Materials Chemistry. 2005 ; Vol. 15, No. 12. pp. 1238-1243.
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abstract = "Polystyrene microbeads doped with highly luminescent CdS quantum dots (QDs) have been prepared. Polystyrene particles with diameters ranging from 100 nm to 500 mm were prepared by a suspension polymerization method and with different loadings of QDs. The resulting organic-inorganic microspheres have been characterized by FTIR, elemental analysis and SEM. Confocal microscopy and photoluminescence studies proved that the CdS nanoparticles were evenly distributed throughout the polystyrene spheres. The QDcontaining composites have similar optical properties to isolated CdS QDs. The thermal decomposition of the hybrid materials occurred at higher temperature than for the parent organic materials.",
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Li, Y, Liu, ECY, Pickett, N, Skabara, PJ, Cummins, SS, Ryley, S, Sutherland, AJ & O'Brien, P 2005, 'Synthesis and characterization of CdS quantum dots in polystyrene microbeads' Journal of Materials Chemistry, vol. 15, no. 12, pp. 1238-1243. https://doi.org/10.1039/b412317d

Synthesis and characterization of CdS quantum dots in polystyrene microbeads. / Li, Yang; Liu, Eric Chun Yeung; Pickett, Nigel; Skabara, Peter J.; Cummins, Siobhan S.; Ryley, Stephen; Sutherland, Andrew J.; O'Brien, Paul.

In: Journal of Materials Chemistry, Vol. 15, No. 12, 2005, p. 1238-1243.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synthesis and characterization of CdS quantum dots in polystyrene microbeads

AU - Li, Yang

AU - Liu, Eric Chun Yeung

AU - Pickett, Nigel

AU - Skabara, Peter J.

AU - Cummins, Siobhan S.

AU - Ryley, Stephen

AU - Sutherland, Andrew J.

AU - O'Brien, Paul

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AB - Polystyrene microbeads doped with highly luminescent CdS quantum dots (QDs) have been prepared. Polystyrene particles with diameters ranging from 100 nm to 500 mm were prepared by a suspension polymerization method and with different loadings of QDs. The resulting organic-inorganic microspheres have been characterized by FTIR, elemental analysis and SEM. Confocal microscopy and photoluminescence studies proved that the CdS nanoparticles were evenly distributed throughout the polystyrene spheres. The QDcontaining composites have similar optical properties to isolated CdS QDs. The thermal decomposition of the hybrid materials occurred at higher temperature than for the parent organic materials.

KW - oleic-acid

KW - polymer composites

KW - optical-properties

KW - nanocrystals

KW - ftir

KW - nanoparticles

KW - nanocomposites

KW - monolayers

KW - clusters

KW - crystal

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Li Y, Liu ECY, Pickett N, Skabara PJ, Cummins SS, Ryley S et al. Synthesis and characterization of CdS quantum dots in polystyrene microbeads. Journal of Materials Chemistry. 2005;15(12):1238-1243. https://doi.org/10.1039/b412317d