Fabrication and Optical Characteristics of Position-Controlled ZnO Nanotubes and ZnO/Zn0.8M90.2O Coaxial Nanotube Quantum Structure Arrays
- Title
- Fabrication and Optical Characteristics of Position-Controlled ZnO Nanotubes and ZnO/Zn0.8M90.2O Coaxial Nanotube Quantum Structure Arrays
- Authors
- YOO, J; HONG, YJ; JUNG, HS; KIM, YJ; LEE, CH; CHO, J; DOH, YJ; DANG, LS; PARK, KH; YI, GC; null
- Date Issued
- 2009-05
- Publisher
- WILEY-V C H VERLAG GMBH
- 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.
- Keywords
- CARBON NANOTUBES; NANOWIRES; HETEROSTRUCTURES; PHOTONICS; NANORODS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28331
- DOI
- 10.1002/ADFM.2008011
- ISSN
- 1616-301X
- Article Type
- Article
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- There are no files associated with this item.
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