Tuning the internal structures of CdSeS nanoparticles by using different selenium and sulphur precursors

Xianfeng Chen*, John L. Hutchison, Peter J. Dobson, Gareth Wakefield

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Alloyed CdSeS nanoparticles (NPs) with composition gradient and homogeneous internal structures have been successfully prepared in aqueous solution by using different selenium and sulphur precursors. The as-prepared NPs form a homogeneous internal structure when sodium selenide and sodium sulphide were used as selenium and sulphur precursors, respectively. Gradient internal structures were obtained for alloyed CdSeS NPs prepared by using sodium selenosulphate and sodium thiosulphate as selenium and sulphur precursors, respectively. The method takes advantage of the fact that different selenium/sulphur sources release selenium/sulphur ions at different rates or have different reaction rates of selenium/sulphur toward cadmium.

Original languageEnglish
Pages (from-to)14-18
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume166
Issue number1
DOIs
Publication statusPublished - 15 Jan 2010

Keywords / Materials (for Non-textual outputs)

  • Alloyed
  • CdSeS
  • Internal structure
  • Nanoparticles

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