Fabrication and characterization of CdSe/ZnS-QDs incorporated microbeads for ultra-sensitive sensor applications

Dong Sup Lee, Jong Chul Lee, Jong Heun Lee, Eun Hae Koo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Compared with organic fluorophores, semiconductor quantum dots (QDs) have the better properties such as photostability, narrow emission spectra coupled to tunable photoluminescent emissions and exceptional resistance to both photo bleaching and chemical degradation. In this work, CdSe/ZnS QDs nanobeads were prepared by the incorporation of CdSe/ZnS QDs with mesoporous silica to use as the optical probe for detecting toxic and bio- materials with high sensitivity, CdSe/ZnS core/shell QDs were synthesized from the precursors such as CdO and zinc stéarate with the lower toxicity than pyrotic precursors. The QD-nanobeads were characterized by transmission electron microscopy, FL microscopy, UV-Vis and PL spectroscopy, respectively.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalJournal of the Korean Ceramic Society
Volume47
Issue number2
DOIs
Publication statusPublished - 2010 Mar 31

Keywords

  • CdSe/ZnS
  • Incorporation
  • Mesoporous silica
  • Nanobeads
  • Quantum dot

ASJC Scopus subject areas

  • Ceramics and Composites

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