Type

Conference Proceedings

Authors

Justin D. Holmes
Michael A. Morris
Colm O'Regan
Subhajit Biswas

Subjects

Engineering

Topics
nucleation and growth transmission electron microscopy tem nanostructure rate dependent growth model germanium alloys germanium ge growth rate

Nanosize effect in germanium nanowire growth with binary metal alloys (2015)

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.
Collections Ireland -> University College Cork -> Materials Chemistry and Analysis Group
Ireland -> University College Cork -> College of Science, Engineering and Food Science
Ireland -> University College Cork -> Tyndall National Institute
Ireland -> University College Cork -> Micro-Nanoelectronics Centre
Ireland -> University College Cork -> Chemistry - Conference Items
Ireland -> University College Cork -> Chemistry
Ireland -> University College Cork -> Materials Chemistry and Analysis Group - Conference Items
Ireland -> University College Cork -> Research Institutes and Centres

Full list of authors on original publication

Justin D. Holmes, Michael A. Morris, Colm O'Regan, Subhajit Biswas

Experts in our system

1
Justin D. Holmes
University College Cork
Total Publications: 287
 
2
Michael A. Morris
University College Cork
Total Publications: 164
 
3
Colm O'Regan
University College Cork
Total Publications: 16
 
4
Subhajit Biswas
University College Cork
Total Publications: 43