Structural, electrical, and optical properties of faceted In 2O3 nanostructures

Cheng Lun Hsin, Shang Ming Wang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We reported the study of the growth mechanism of the In2O 3 nanorods on the silicon oxide substrate and its electrical and optical properties. Both of the vapor-liquid-solid and vapor-solid (VS) mechanism occurred concurrently during the growth of In2O3 nanorods. The catalyst on the top of the nanorod is evident for the VLS mechanism. Meanwhile, the diameter of the nanorod mismatched the size of the catalyst and transmission electron microscopy study revealed that the sidewall of the nanorod was rough at the atomic scale during the growth, which is evident for the VS mechanism. The In2O3 nanorods became faceted eventually with a pyramidal tip, composed of {1 0 0} and {1 1 1} facets with lower total surface energy at the growth temperature. The electrical measurement presents the conductivity and the estimated carrier concentration, while the photoluminescence exhibits the optical characteristics. This study provides the insight for the understanding of the growth mechanism and physical properties of the In2O3 nanostructures.

Original languageEnglish
Article number6733346
Pages (from-to)172-175
Number of pages4
JournalIEEE Transactions on Nanotechnology
Volume13
Issue number2
DOIs
StatePublished - Mar 2014

Keywords

  • Electrical
  • Facet
  • InO
  • Nanorod
  • Photoluminescence
  • Transmission electron microscope (TEM)
  • Vapor-liquid- solid (VLS)
  • Vapor-solid (VS)

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