Comparative studies of structural transition between AlN nanocrystals and nanowires

Lei, W.W., Liu, D., Zhang, J., Cui, Q.L. and Zou, G.T. 2008, Comparative studies of structural transition between AlN nanocrystals and nanowires, Journal of physics : conference series, vol. 121, no. 162006, pp. 1-8, doi: 10.1088/1742-6596/121/16/162006.

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Title Comparative studies of structural transition between AlN nanocrystals and nanowires
Author(s) Lei, W.W.ORCID iD for Lei, W.W.
Liu, D.ORCID iD for Liu, D.
Zhang, J.
Cui, Q.L.
Zou, G.T.
Journal name Journal of physics : conference series
Volume number 121
Issue number 162006
Start page 1
End page 8
Total pages 8
Publisher Institute of Physics Publishing
Place of publication Bristol, England
Publication date 2008
ISSN 1742-6588
Keyword(s) surfaces
interfaces and thin films
nanoscale science and low-D systems
condensed matter : structural
mechanical and thermal
Summary The structural transition of AIN nanocrystals and nanowires were investigated simultaneously under pressures up to 37.2 GPa by in situ angle dispersive high-pressure x-ray diffraction using synchrotron radiation source and a single diamond anvil cell. The size of hexagonal AIN nanocrystals and the diameter of nanowires are 45 nm on average. A pressure-induced wurtzite to rocksalt phase transition starts at 21.5 GPa and completes at 27.8 GPa for the nanocrystals and nanowires, respectively. The high-pressure behaviors of AlN nanocrystals the same as the AIN nanowires might arise from the similar size and diameter in nanocrystals and nanowires. Hexagonal AIN nanocrystals (45 nm) display an apparent volumetric contraction as compared to the AlN nanocrystals (10 nm) which might induce the difference of transition pressure.
Language eng
DOI 10.1088/1742-6596/121/16/162006
Field of Research 091205 Functional Materials
020504 Photonics, Optoelectronics and Optical Communications
100708 Nanomaterials
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, Institute of Physics Publishing
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