Metallic and ionic Fe induced growth of Si-SiOx core-shell nanowires

Nie, TX, Chen, ZG, Wu, YQ, Wang, JL, Zhang, JZ, Fan, YL, Yang, XJ, Jiang, ZM and Zou, J (2010) Metallic and ionic Fe induced growth of Si-SiOx core-shell nanowires. The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter, 114 36: 15370-15376. doi:10.1021/jp105952m


Author Nie, TX
Chen, ZG
Wu, YQ
Wang, JL
Zhang, JZ
Fan, YL
Yang, XJ
Jiang, ZM
Zou, J
Title Metallic and ionic Fe induced growth of Si-SiOx core-shell nanowires
Formatted title
Metallic and ionic Fe induced growth of Si-SiOx core-shell nanowires
Journal name The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2010-09-16
Sub-type Article (original research)
DOI 10.1021/jp105952m
Volume 114
Issue 36
Start page 15370
End page 15376
Total pages 7
Place of publication Washigton, DC, United States
Publisher American Chemical Society
Collection year 2011
Language eng
Formatted abstract
Si−SiOx core−shell nanowires with a length of hundreds of micrometers and average diameters of 40−90 nm were fabricated by directly heating Si wafers coated with metallic Fe. These novel core−shell nanowires have a diamond structure for their ultrathin Si cores with a diameter of 5−8 nm aligned along the (111) growth directions inside much thicker amorphous SiOx shells. A new temperature-dependent alloy, metallic and ionic Fe (Fe−FeOx), catalyzed solid−liquid−solid mechanism is proposed to explain the growth of Si−SiOx core−shell nanowires based on both the synthesis conditions and microstructural characterizations.
Copyright © 2011 American Chemical Society
Keyword Chemical vapor deposition
Liquid solid mechanism
Silicon nanowires
Assisted growth
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Sun, 19 Sep 2010, 00:05:40 EST