Aligned hexagonal coaxial-shaped ZnO nanocolumns on steel alloy by thermal evaporation

A. Umar; Y. B. Hahn

doi:10.1063/1.2200472

Aligned hexagonal coaxial-shaped ZnO nanocolumns on steel alloy by thermal evaporation

A. Umar
, Y. B. Hahn

Department of Chemistry

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

171 Citations (Scopus)

Abstract

Single-crystalline, hexagonal coaxial-shaped ZnO nanocolumns have been synthesized in a large quantity on steel alloy substrate via catalyst-free thermal evaporation of metallic zinc powder at 490 °C. The optical-phonon E2 mode at 437 cm-1 in Raman spectrum and a strong UV emission at 381 nm in photoluminescence spectrum showed that the synthesized ZnO nanocolumns have a good crystal quality, with a wurtzite hexagonal phase and exhibited a good optical property. A layer-by-layer three-step growth mechanism was proposed for the formation of hexagonal coaxial-shaped ZnO nanocolumns.

Original language	English
Article number	173120
Journal	Applied Physics Letters
Volume	88
Issue number	17
DOIs	https://doi.org/10.1063/1.2200472
Publication status	Published - 2006

Access to Document

10.1063/1.2200472

Cite this

@article{7e4b4f2f38f942d09f16d4c42d712cc3,

title = "Aligned hexagonal coaxial-shaped ZnO nanocolumns on steel alloy by thermal evaporation",

abstract = "Single-crystalline, hexagonal coaxial-shaped ZnO nanocolumns have been synthesized in a large quantity on steel alloy substrate via catalyst-free thermal evaporation of metallic zinc powder at 490 °C. The optical-phonon E2 mode at 437 cm-1 in Raman spectrum and a strong UV emission at 381 nm in photoluminescence spectrum showed that the synthesized ZnO nanocolumns have a good crystal quality, with a wurtzite hexagonal phase and exhibited a good optical property. A layer-by-layer three-step growth mechanism was proposed for the formation of hexagonal coaxial-shaped ZnO nanocolumns.",

author = "A. Umar and Hahn, \{Y. B.\}",

note = "Funding Information: This work was supported by the Korea Research Foundation Grant (KRF-2005-005-J07502) funded by the Korean Government (MOEHRD). One of the authors (A.U.) is thankful to the Korea Research Foundation for its graduate research fellowship program.",

year = "2006",

doi = "10.1063/1.2200472",

language = "English",

volume = "88",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "17",

}

TY - JOUR

T1 - Aligned hexagonal coaxial-shaped ZnO nanocolumns on steel alloy by thermal evaporation

AU - Umar, A.

AU - Hahn, Y. B.

N1 - Funding Information: This work was supported by the Korea Research Foundation Grant (KRF-2005-005-J07502) funded by the Korean Government (MOEHRD). One of the authors (A.U.) is thankful to the Korea Research Foundation for its graduate research fellowship program.

PY - 2006

Y1 - 2006

N2 - Single-crystalline, hexagonal coaxial-shaped ZnO nanocolumns have been synthesized in a large quantity on steel alloy substrate via catalyst-free thermal evaporation of metallic zinc powder at 490 °C. The optical-phonon E2 mode at 437 cm-1 in Raman spectrum and a strong UV emission at 381 nm in photoluminescence spectrum showed that the synthesized ZnO nanocolumns have a good crystal quality, with a wurtzite hexagonal phase and exhibited a good optical property. A layer-by-layer three-step growth mechanism was proposed for the formation of hexagonal coaxial-shaped ZnO nanocolumns.

AB - Single-crystalline, hexagonal coaxial-shaped ZnO nanocolumns have been synthesized in a large quantity on steel alloy substrate via catalyst-free thermal evaporation of metallic zinc powder at 490 °C. The optical-phonon E2 mode at 437 cm-1 in Raman spectrum and a strong UV emission at 381 nm in photoluminescence spectrum showed that the synthesized ZnO nanocolumns have a good crystal quality, with a wurtzite hexagonal phase and exhibited a good optical property. A layer-by-layer three-step growth mechanism was proposed for the formation of hexagonal coaxial-shaped ZnO nanocolumns.

UR - https://www.scopus.com/pages/publications/33646397075

U2 - 10.1063/1.2200472

DO - 10.1063/1.2200472

M3 - Article

AN - SCOPUS:33646397075

SN - 0003-6951

VL - 88

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 173120

ER -

Aligned hexagonal coaxial-shaped ZnO nanocolumns on steel alloy by thermal evaporation

Abstract

Access to Document

Other files and links

Fingerprint

Cite this