Controllable synthesis, characterization, and growth mechanism of hollow ZnxCd1-xS spheres generated by a one-step thermal evaporation method

Zai Xing Yang*, Wei Zhong, Chak Tong AU, You Wei Du

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Novel hollow ZnxCd1-xS spheres that are uniform in size are synthesized through the one-step thermal evaporation of a mixture of Zn and CdS powder. From an X-ray diffraction (XRD) study, the hexagonal wurtzite phase of ZnxCd1-xS is verified, and the Zn mole fraction (x) is determined to be 0.09. According to the experimental results, we propose a mechanism for the growth of Zn0.09Cd0.91S hollow spheres. The results of the cathodoluminescence investigation indicate uniform Zn, Cd, and S distribution of alloyed Zn0.09Cd0.91S, instead of separate CdS, ZnS, or nanocrystals of a core-shell structure. To the best of our knowledge, the fabrication of ZnxCd1-xS hollow spheres of this kind by one-step thermal evaporation has never been reported. This work would present a new method of growing and applying hollow spheres on Si substrates, and the discovery of the Zn0.09 Cd0.91S hollow spheres would make the investigation of ZnxCd1-xS micro/nanostructures more interesting and intriguing.

Original languageEnglish
Article number108101
JournalChinese Physics B
Volume22
Issue number10
DOIs
Publication statusPublished - Oct 2013

Scopus Subject Areas

  • Physics and Astronomy(all)

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