Comparison between laser-induced nucleation of ZnS and CdS nanocrystals directly into polymer matrices

Athanassia Athanassiou, Laura Blasi, Milena De Giorgi, Gianvito Caputo, Despina Fragouli, Elsa Tsiranidou, Anna Maria Laera, Leander Tapfer, Roberto Cingolani

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Abstract

The nucleation of two kinds of crystalline nanoparticles, zinc sulfide (ZnS), and cadmium sulfide (CdS), is achieved directly into specific sites of polymer matrices after their irradiation with UV laser pulses. The starting samples consist of polymers doped with precursors of Zn or Cd thiolate that are proved to decompose after the absorption of UV light, resulting into the nanoparticles formation. The growth of the crystalline nanostructures is followed throughout the irradiation of the samples with successive incident pulses, by different methods, such as transmission electron microscopy, atomic force microscopy, confocal microscopy, and X-ray diffraction. Special attention is paid to the difference of the formation pathways of the two kinds of nanoparticles studied, because the Cd thiolate precursor exhibits much higher absorption efficiency than the Zn thiolate one, at the applied UV wavelength. Indeed, CdS nanoparticles become evident after the very first incident UV pulses, whereas the formation of ZnS nanocrystals requires rather prolonged irradiation, always through a macroscopically nondestructive procedure for the polymer matrix. © 2009 Society of Plastics Engineers.
Original languageEnglish
Pages (from-to)1075 - 1083
Number of pages9
JournalPolymer Composites
Volume31
Issue number6
DOIs
Publication statusPublished - Jun 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Athanassiou, A., Blasi, L., De Giorgi, M., Caputo, G., Fragouli, D., Tsiranidou, E., ... Cingolani, R. (2010). Comparison between laser-induced nucleation of ZnS and CdS nanocrystals directly into polymer matrices. Polymer Composites, 31(6), 1075 - 1083. https://doi.org/10.1002/pc.20894