• Featured in Physics
  • Rapid Communication

Efficient sticking of surface-passivated Si nanospheres via phase-transition plasticity

M. Suri and T. Dumitrică
Phys. Rev. B 78, 081405(R) – Published 26 August 2008
Physics logo

Abstract

Large-scale atomistic simulations considering a 5 nm in radius H-passivated Si nanosphere that impacts with relatively low energies onto a H-passivated Si substrate reveal a transition between two fundamental collision modes. At impacting speeds of less than 1000m/s particle-reflection dominates. At increased speeds the partial onset in the nanosphere of a β-tin phase on the approach followed by a-Si phase on the recoil is an efficient dissipative route that promotes particle capture. In spite of significant deformation, the integrity of the deposited nanosphere is retained. Our result explains the efficient fabrication of nanoparticulate films by hypersonic impaction, where the nanoparticle impact velocities equal 10002000m/s.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 27 July 2008

DOI:https://doi.org/10.1103/PhysRevB.78.081405

©2008 American Physical Society

Authors & Affiliations

M. Suri and T. Dumitrică*

  • Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, USA

  • *Corresponding author. td@me.umn.edu

See Also

Nanoparticles Stick a Perfect Landing

Michael Schirber
Phys. Rev. Focus 22, 7 (2008)

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 78, Iss. 8 — 15 August 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×