Long-term oxidization and phase transition of InN nanotextures

<p>Abstract</p> <p>The long-term (6 months) oxidization of hcp-InN (wurtzite, InN-w) nanostructures (crystalline/amorphous) synthesized on Si [100] substrates is analyzed. The densely packed layers of InN-w nanostructures (5-40 nm) are shown to be oxidized by atmospheric oxygen via...

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Main Authors: Dra&#382;ic Goran, Kobe Spomenka, Sarantopoulou Evangelia, Kollia Zoe, Antonakakis Nicolaos
Format: Article
Language:English
Published: SpringerOpen 2011-01-01
Series:Nanoscale Research Letters
Online Access:http://www.nanoscalereslett.com/content/6/1/387
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author Dra&#382;ic Goran
Kobe Spomenka
Sarantopoulou Evangelia
Kollia Zoe
Antonakakis Nicolaos
author_facet Dra&#382;ic Goran
Kobe Spomenka
Sarantopoulou Evangelia
Kollia Zoe
Antonakakis Nicolaos
author_sort Dra&#382;ic Goran
collection DOAJ
description <p>Abstract</p> <p>The long-term (6 months) oxidization of hcp-InN (wurtzite, InN-w) nanostructures (crystalline/amorphous) synthesized on Si [100] substrates is analyzed. The densely packed layers of InN-w nanostructures (5-40 nm) are shown to be oxidized by atmospheric oxygen via the formation of an intermediate amorphous In-O<sub> <it>x</it> </sub>-N<sub> <it>y </it> </sub>(indium oxynitride) phase to a final bi-phase hcp-InN/bcc-In<sub>2</sub>O<sub>3 </sub>nanotexture. High-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, electron energy loss spectroscopy and selected area electron diffraction are used to identify amorphous In-O<sub> <it>x</it> </sub>-N<sub> <it>y </it> </sub>oxynitride phase. When the oxidized area exceeds the critical size of 5 nm, the amorphous In-O<sub> <it>x</it> </sub>-N<sub> <it>y </it> </sub>phase eventually undergoes phase transition via a slow chemical reaction of atomic oxygen with the indium atoms, forming a single bcc In<sub>2</sub>O<sub>3 </sub>phase.</p>
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spelling doaj.art-1de5ae8905174b8a90fdd8b0a91c14fd2023-08-02T03:46:53ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2011-01-0161387Long-term oxidization and phase transition of InN nanotexturesDra&#382;ic GoranKobe SpomenkaSarantopoulou EvangeliaKollia ZoeAntonakakis Nicolaos<p>Abstract</p> <p>The long-term (6 months) oxidization of hcp-InN (wurtzite, InN-w) nanostructures (crystalline/amorphous) synthesized on Si [100] substrates is analyzed. The densely packed layers of InN-w nanostructures (5-40 nm) are shown to be oxidized by atmospheric oxygen via the formation of an intermediate amorphous In-O<sub> <it>x</it> </sub>-N<sub> <it>y </it> </sub>(indium oxynitride) phase to a final bi-phase hcp-InN/bcc-In<sub>2</sub>O<sub>3 </sub>nanotexture. High-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, electron energy loss spectroscopy and selected area electron diffraction are used to identify amorphous In-O<sub> <it>x</it> </sub>-N<sub> <it>y </it> </sub>oxynitride phase. When the oxidized area exceeds the critical size of 5 nm, the amorphous In-O<sub> <it>x</it> </sub>-N<sub> <it>y </it> </sub>phase eventually undergoes phase transition via a slow chemical reaction of atomic oxygen with the indium atoms, forming a single bcc In<sub>2</sub>O<sub>3 </sub>phase.</p>http://www.nanoscalereslett.com/content/6/1/387
spellingShingle Dra&#382;ic Goran
Kobe Spomenka
Sarantopoulou Evangelia
Kollia Zoe
Antonakakis Nicolaos
Long-term oxidization and phase transition of InN nanotextures
Nanoscale Research Letters
title Long-term oxidization and phase transition of InN nanotextures
title_full Long-term oxidization and phase transition of InN nanotextures
title_fullStr Long-term oxidization and phase transition of InN nanotextures
title_full_unstemmed Long-term oxidization and phase transition of InN nanotextures
title_short Long-term oxidization and phase transition of InN nanotextures
title_sort long term oxidization and phase transition of inn nanotextures
url http://www.nanoscalereslett.com/content/6/1/387
work_keys_str_mv AT dra382icgoran longtermoxidizationandphasetransitionofinnnanotextures
AT kobespomenka longtermoxidizationandphasetransitionofinnnanotextures
AT sarantopoulouevangelia longtermoxidizationandphasetransitionofinnnanotextures
AT kolliazoe longtermoxidizationandphasetransitionofinnnanotextures
AT antonakakisnicolaos longtermoxidizationandphasetransitionofinnnanotextures