Nanosize effect in germanium nanowire growth with binary metal alloys

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

This article describes feasible and improved ways towards enhanced nanowire growth kinetics by reducing the equilibrium solute concentration in the liquid collector phase in a vapor-liquid-solid (VLS) like growth model. Use of bi-metallic alloy seeds (AuxAg1-x) influences the germanium supersaturation for a faster nucleation and growth kinetics. Nanowire growth with ternary eutectic alloys shows Gibbs-Thompson effect with diameter dependent growth rate. In-situ transmission electron microscopy (TEM) annealing experiments directly confirms the role of equilibrium concentration in nanowire growth kinetics and was used to correlate the equilibrium content of metastable alloys with the growth kinetics of Ge nanowires. The shape and geometry of the heterogeneous interfaces between the liquid eutectic and solid Ge nanowires were found to vary as a function of nanowire diameter and eutectic alloy composition.

Original languageEnglish
Title of host publicationSemiconductor Nanowires - Growth, Physics, Devices and Applications
EditorsG. Koblmueller
PublisherMaterials Research Society
Pages13-18
Number of pages6
ISBN (Electronic)9781510806276
DOIs
Publication statusPublished - 2015
Event2014 MRS Fall Meeting - Boston, United States
Duration: 30 Nov 20145 Dec 2014

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1751
ISSN (Print)0272-9172

Conference

Conference2014 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston
Period30/11/145/12/14

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