Formation mechanism and photoluminescence of necklace-like In 2O3 nanowires

Jong Seok Jeong, Jeong Yong Lee

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Necklace-like In2O3 nanowires, which consist of In2O3 crystals (beads) and nanowires (thread), demonstrated by a simple thermal method. The shape of bead crystals based on an {111}-octahedron, of which vertices are truncated with {100} facets. According to the growth direction of the nanowires, the truncated octahedron has two different shapes; i.e., symmetric one on < 100>-nanowires and asymmetric one on < 111>-nanowires. It is shown that the growth of the bead crystals is determined by anisotropy of the growth rates of low-index facets related to their surface energy and an epitaxial relationship between the bead crystals and nanowires. Their formation mechanism and photoluminescence are discussed.

Original languageEnglish (US)
Pages (from-to)1693-1695
Number of pages3
JournalMaterials Letters
Volume65
Issue number11
DOIs
StatePublished - Jun 15 2011

Bibliographical note

Funding Information:
This work was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2009–0094040 ).

Keywords

  • Faceted plane
  • Growth mechanism
  • Nanonecklace
  • Nucleation
  • Oxygen deficiency
  • Surface energy

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