Chemically binding Eu3+ onto CdS semiconductor nanoparticle surface

Guang Hua Zhu*, Krystyna Tomsia, Hong Yu, Motlan, Ewa M. Goldys

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Europium ions were chemically bound to CdS nanoparticles surface by diethylenetri-aminepentaacetate (DTPA, 1) in a two-step synthetic route. First 1 was applied to chelate with cadmium on the surface of cadmium-rich CdS nanoparticles and act as a capping agent. Further, the purified 1-capped particles were used to bind with Eu3+. The purified and redispersed particles were characterized by photoluminescence spectroscopy, TEM and SEM. It was observed that Eu3+ on the nanoparticle surface significantly increased the band gap emission and decreased the surface emission intensity of the CdS nanoparticles.

Original languageEnglish
Pages (from-to)581-584
Number of pages4
JournalChinese Chemical Letters
Volume18
Issue number5
DOIs
Publication statusPublished - May 2007

Keywords

  • cadmium sulphide
  • DTPA
  • semiconductors
  • nanoparticles

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