Publication detail

Controlled faceting in (110) germanium nanowire growth by switching between vapor-liquid-solid and vapor-solid-solid growth

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