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Fabrication and Optical Characteristics of Position-Controlled ZnO Nanotubes and ZnO/Zn0.8Mg0.2O Coaxial Nanotube Quantum Structure Arrays : Fabrication and Optical Characteristics of Position-Controlled ZnO Nanotubes and ZnO/Zn0.8M90.2O Coaxial Nanotube Quantum Structure Arrays

Cited 31 time in Web of Science Cited 35 time in Scopus
Authors

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

Issue Date
2009-05
Publisher
John Wiley & Sons Ltd.
Citation
Advanced Functional Materials, Vol.19 No.10, pp.1601-1608
Abstract
The position-controlled growth and structural and optical characteristics of ZnO nanotubes and their coaxial heterostructures are reported. To control both the shape and position of ZnO nanotubes, hole-patterned SiO2 growth-mask layers on Si(111) substrates with CaN/AlN intermediate layers using conventional lithography are prepared. ZnO nanotubes are grown only on the hole patterns at 600 degrees 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 diffiractometry and photoluminescence and cathodoluminescence spectroscopy.
ISSN
1616-301X
URI
https://hdl.handle.net/10371/202378
DOI
https://doi.org/10.1002/adfm.200801123
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  • College of Engineering
  • Department of Electrical and Computer Engineering
Research Area 2차원 반도체 소자 및 재료, High-Performance 2D Electronics, Low-Power 2D Electronics, 뉴로모픽 소자 및 응용기술, 저전력 소자 및 소자물리

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