Fabrication and optical characteristics of position-controlled ZnO nanotubes and ZnO/Zn0.8Mg0.2O coaxial nanotube quantum structure arrays

Jinkyoung Yoo, Young Joon Hong, Hye Seong Jung, Yong Jin Kim, Chul-Ho Lee, Jeonghui Cho, Yong Joo Doh, Le Si Dang, Kyung Ho Park, Gyu Chul Yi

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The position-controlled growth and structural and optical characteristics o ZnO nanotubes and their coaxial heterostructures are reported. To control both the shape and position of ZnO nanotubes, hole-patterned SiO2 growthmask layers on Si(111) substrates with GaN/AlN intermediate layers using conventional lithography are prepared. ZnO nanotubes are grown only on the hole patterns at 600°C by catalyst-free metal-organic vapor-phase epitaxy. Furthermore, the position-controlled nanotube growth method allows the fabrication of artificial arrays of ZnO-based coaxial nanotube single-quantumwell structures (SQWs) on Si substrates. In situ heteroepitaxial growth of ZnO and Zn0.8Mg0.2O layers along the circumference of the ZnO nanotube enable an artificial formation of quantum-well arrays in a designed fashion. The structural and optical characteristics of the ZnO nanotubes and SQW arrays are also investigated using synchrotron radiation X-ray diffractometry and photoluminescence and cathodoluminescence spectroscopy.

Original languageEnglish
Pages (from-to)1601-1608
Number of pages8
JournalAdvanced Functional Materials
Volume19
Issue number10
DOIs
Publication statusPublished - 2009 May 22
Externally publishedYes

Fingerprint

Nanotubes
nanotubes
Fabrication
fabrication
Vapor phase epitaxy
Cathodoluminescence
circumferences
Substrates
cathodoluminescence
Synchrotron radiation
Epitaxial growth
vapor phase epitaxy
Lithography
X ray diffraction analysis
Semiconductor quantum wells
Heterojunctions
Photoluminescence
synchrotron radiation
lithography
Metals

ASJC Scopus subject areas

  • Biomaterials
  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Fabrication and optical characteristics of position-controlled ZnO nanotubes and ZnO/Zn0.8Mg0.2O coaxial nanotube quantum structure arrays. / Yoo, Jinkyoung; Hong, Young Joon; Jung, Hye Seong; Kim, Yong Jin; Lee, Chul-Ho; Cho, Jeonghui; Doh, Yong Joo; Dang, Le Si; Park, Kyung Ho; Yi, Gyu Chul.

In: Advanced Functional Materials, Vol. 19, No. 10, 22.05.2009, p. 1601-1608.

Research output: Contribution to journalArticle

Yoo, Jinkyoung ; Hong, Young Joon ; Jung, Hye Seong ; Kim, Yong Jin ; Lee, Chul-Ho ; Cho, Jeonghui ; Doh, Yong Joo ; Dang, Le Si ; Park, Kyung Ho ; Yi, Gyu Chul. / Fabrication and optical characteristics of position-controlled ZnO nanotubes and ZnO/Zn0.8Mg0.2O coaxial nanotube quantum structure arrays. In: Advanced Functional Materials. 2009 ; Vol. 19, No. 10. pp. 1601-1608.
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