Nanosize effect in germanium nanowire growth with binary metal alloys


Autoria(s): Biswas, Subhajit; O'Regan, Colm; Morris, Michael A.; Holmes, Justin D.
Contribuinte(s)

Koblmueller, G.

Science Foundation Ireland

Data(s)

16/12/2015

29/02/2016

01/02/2015

15/12/2015

Resumo

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.

Science Foundation Ireland (Grant: 09/IN.1/I2602)

Published Version

Peer reviewed

Formato

application/pdf

Identificador

Subhajit Biswas, Colm O’Regan, Michael A. Morris and Justin D. Holmes (2015). Nanosize effect in Germanium nanowire growth with binary metal alloys. MRS Proceedings, 1751, mrsf14-1751-ll07-05 doi:10.1557/opl.2015.143.

1751

1

6

http://hdl.handle.net/10468/2147

10.1557/opl.2015.143

MRS Proceedings

Idioma(s)

en

Publicador

Cambridge University Press

Relação

MRS Proceedings

http://www.mrs.org/home/

Direitos

Copyright © Materials Research Society 2015.

Palavras-Chave #Nanostructure #Transmission electron microscopy (TEM) #Germanium (Ge)
Tipo

Conference item