Phase diagram of nanoscale alloy particles used for vapor-liquid-solid growth of semiconductor nanowires

Nano Letters
Eli Sutter, Peter W Sutter

Abstract

We use transmission electron microscopy observations to establish the parts of the phase diagram of nanometer sized Au-Ge alloy drops at the tips of Ge nanowires (NWs) that determine their temperature-dependent equilibrium composition and, hence, their exchange of semiconductor material with the NWs. We find that the phase diagram of the nanoscale drop deviates significantly from that of the bulk alloy, which explains discrepancies between actual growth results and predictions on the basis of the bulk-phase equilibria. Our findings provide the basis for tailoring vapor-liquid-solid growth to achieve complex one-dimensional materials geometries.

References

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Jul 12, 2005·Proceedings of the National Academy of Sciences of the United States of America·Wei LuCharles M Lieber
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Dec 14, 2006·Nano Letters·Jee-Eun YangMoon-Ho Jo
Apr 17, 2007·Nature Materials·Peter W Sutter, Eli A Sutter
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Citations

Jul 3, 2010·Nanoscale Research Letters·G Guisbiers
Jul 27, 2011·Nano Letters·Vincent C HolmbergBrian A Korgel
Dec 22, 2012·Nano Letters·Sam CrawfordSilvija Gradečak
Aug 8, 2013·Nano Letters·Subhajit BiswasJustin D Holmes
Oct 17, 2009·Science·Vincent C HolmbergBrian A Korgel
Apr 9, 2015·Nano Letters·Qian LiuJunqing Hu
Mar 17, 2010·Journal of the American Chemical Society·Chengyu HeYi Chen
Jan 6, 2017·Reports on Progress in Physics·Walter M Weber, Thomas Mikolajick
Apr 24, 2010·Nature·T U SchülliA Pasturel
Apr 7, 2010·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·T HaxhimaliJ J Hoyt
May 1, 2012·Physical Review Letters·Joongoo KangYong-Hyun Kim
May 7, 2009·Nanotechnology·Vladislav DrínekRadek Fajgar
Nov 28, 2015·Physical Review Letters·Y MagninC Bichara
Oct 29, 2008·Nanotechnology·Eli SutterPeter Sutter
May 15, 2015·Nanotechnology·Samuel C CrawfordSilvija Gradečak
May 21, 2010·Physical Review Letters·Frank GlasGilles Patriarche
Jan 7, 2010·Nano Letters·Yu-Lun ChuehAli Javey
Sep 29, 2009·Nano Letters·Myung Hwa KimAlec M Wodtke
Mar 6, 2009·Nano Letters·Z W Wang, Z Y Li
Oct 29, 2008·Nano Letters·Edwin J Schwalbach, Peter W Voorhees
Sep 22, 2010·Nano Letters·Shadi A Dayeh, S T Picraux
Jan 8, 2011·ACS Nano·Oussama MoutanabbirMichael Horn-von Hoegen
Apr 19, 2019·Chemical Reviews·Lucas GüniatAnna Fontcuberta I Morral

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