Hilner, Emelie; Zakharov, Alexei A.; Schulte, Karina; Kratzer, Peter; Andersen, Jesper N.; Lundgren, Edvin; Mikkelsen, Anders:
Ordering of the nanoscale step morphology as a mechanism for droplet self-propulsion
In: Nano Letters, Band 9 (2009), S. 2710 - 2714
2009Artikel/Aufsatz in Zeitschrift
Physik (inkl. Astronomie)
Damit verbunden: 1 Publikation(en)
Titel:
Ordering of the nanoscale step morphology as a mechanism for droplet self-propulsion
Autor*in:
Hilner, Emelie;Zakharov, Alexei A.;Schulte, Karina;Kratzer, PeterUDE
GND
105650420
LSF ID
14826
ORCID
0000-0001-5947-1366ORCID iD
ORCID
0000-0003-4790-4616ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Andersen, Jesper N.;Lundgren, Edvin;Mikkelsen, Anders
Erscheinungsjahr:
2009

Abstract:

We establish a new mechanism for self-propelled motion of droplets, in which ordering of the nanoscale step morphology by sublimation beneath the droplets themselves acts to drive them perpendicular and up the surface steps. The mechanism is demonstrated and explored for Ga droplets on GaP(111)B, using several experimental techniques allowing studies of the structure and dynamics from micrometers to the atomic scale. We argue that the simple assumptions underlying the propulsion mechanism make it relevant for a wide variety of materials systems.