Growth and characterization of Zn-ZnO core-shell polygon prismatic nanocrystals on Si

Chin Ching Lin, Kun Ho Liu, San-Yuan Chen*

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Zn precursor synthesized from Zn(ClO4)2 solution was used as nucleation seeds for the growth of Zn polygon prismatic nanocrystals on silicon via a thermal vapor transport at low temperatures of 150-400°C (substrate) in Ar atmosphere. Depending on different reaction temperature and atmosphere, Zn-ZnO core-shell polygon prismatic nanocrystals with a dimension from nanometer to micrometer can be developed as evidenced from high-resolution transmission electron microscopy and auger nanoprobe electron spectroscopy analysis. The Zn-ZnO polygon prismatic structure shows weak UV emission and strong deep-level emission. However, photoluminescence properties and crystallization of Zn-ZnO prismatic nanocrystals could be improved by suitable post-treatment.

Original languageEnglish
Pages (from-to)425-431
Number of pages7
JournalJournal of Crystal Growth
Volume269
Issue number2-4
DOIs
StatePublished - 1 Sep 2004

Keywords

  • A1. Photoluminescence
  • B1. Nanocrystals
  • B1. Zn
  • B1. ZnO

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