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Critical size of self-propelled motion of droplets on GaAs (100) surface

Wu, J; Wang, ZM; Li, AZ; Benamara, M; Lee, J; Koukourinkova, SD; Kim, ES; (2012) Critical size of self-propelled motion of droplets on GaAs (100) surface. JOURNAL OF APPLIED PHYSICS , 112 (4) 10.1063/1.4749401.

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Abstract

The running liquid Ga droplets on GaAs surface (001) are presented and analyzed by scanning electron microscope and atomic force microscope. Self-motion of Ga droplet on GaAs surface is confirmed by microscope measurements. The liquid droplets are found to move with an initial critical diameter and constantly increase size during motion. The critical diameter of moving Ga droplets is observed to be 1.9 mu m on GaAs (011) surface at preparation temperature 680 degrees C. A linear relationship is found between droplet diameter and trail length. These experiment results are qualitatively analyzed to understand the phenomenon of self-running Ga droplets on GaAs surface. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4749401]

Type: Article
Title: Critical size of self-propelled motion of droplets on GaAs (100) surface
DOI: 10.1063/1.4749401
Additional information: article-number: 043523 researcherid-numbers: Li, Alvason Zhenhua/M-8380-2015 orcid-numbers: Li, Alvason Zhenhua/0000-0001-6889-3288 unique-id: ISI:000308410100037
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1541460
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