DOI

  • Debra Paige Wilson
  • A. S. Sokolovskii
  • Ray R. LaPierre
  • F. Panciera
  • F. Glas
  • V. G. Dubrovskii

The droplet contact angle and morphology of the growth interface (vertical, tapered or truncated facets) are known to affect the zincblende (ZB) or wurtzite (WZ) crystal phase of III-V nanowires (NWs) grown by the vapor-liquid-solid method. Here, we present a model which describes the dynamics of the morphological evolution in self-catalyzed III-V NWs in terms of the time-dependent (or length-dependent) contact angle or top nanowire radius under varying material fluxes. The model fits quite well the contact angle dynamics obtained by in situ growth monitoring of self-catalyzed GaAs NWs in a transmission electron microscope. These results can be used for modeling the interface dynamics and the related crystal phase switching and for obtaining ZB-WZ heterostructures in III-V.

Translated title of the contributionМоделирование динамики границa раздела и изменения кристаллической фазы в автокаталитических GaAs ННК
Original languageEnglish
Article number485602
Number of pages8
JournalNanotechnology
Volume31
Issue number48
DOIs
StatePublished - 27 Nov 2020

    Research areas

  • contact angle, crystal phase, nanowire radius, self-catalyzed GaAs nanowires, GROWTH

    Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Electrical and Electronic Engineering

ID: 70924481