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

Jong Seok Jeong; Jeong Yong Lee

doi:10.1016/j.matlet.2011.02.083

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

Jong Seok Jeong, Jeong Yong Lee

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

13 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 language	English (US)
Pages (from-to)	1693-1695
Number of pages	3
Journal	Materials Letters
Volume	65
Issue number	11
DOIs	https://doi.org/10.1016/j.matlet.2011.02.083
State	Published - 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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10.1016/j.matlet.2011.02.083

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title = "Formation mechanism and photoluminescence of necklace-like In 2O3 nanowires",

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.",

keywords = "Faceted plane, Growth mechanism, Nanonecklace, Nucleation, Oxygen deficiency, Surface energy",

author = "Jeong, {Jong Seok} and Lee, {Jeong Yong}",

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 ).",

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AU - Lee, Jeong Yong

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N2 - 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.

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KW - Nucleation

KW - Oxygen deficiency

KW - Surface energy

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