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KOLÍBAL, M. KALOUSEK, R. NOVÁK, L. VYSTAVĚL, T. ŠIKOLA, T.
Original Title
Controlled faceting in (110) germanium nanowire growth by switching between vapor-liquid-solid and vapor-solid-solid growth
Type
journal article in Web of Science
Language
English
Original Abstract
We show that the hexagonal cross-section of germanium nanowires grown in the (110) direction by physical vapor deposition is a consequence of minimization of surface energy of the collector droplet. If the droplet is lost or solidified, two (001) sidewall facets are quickly overgrown and the nanowire exhibits a rhomboidal cross-section. This process can be controlled by switching between the liquid and solid state of the droplet, enabling the growth of nanowires with segments having different cross-sections. These experiments are supported by in-situ microscopic bservations and theoretical model
Keywords
Nanowires; SEM; Germanium; VLS, VSS.
Authors
KOLÍBAL, M.; KALOUSEK, R.; NOVÁK, L.; VYSTAVĚL, T.; ŠIKOLA, T.
RIV year
2012
Released
11. 5. 2012
ISBN
0003-6951
Periodical
Applied Physics Letters
Year of study
100
Number
20
State
United States of America
Pages from
203102-1
Pages to
203102-4
Pages count
4