Surface energy modification by electron beam

Daniel Aronov, Gil Rosenman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We observe a pronounced variation of wettability properties in solid state materials induced by a low-energy electron beam. The phenomenon occurs in several stages characterized by various mechanisms. We show that for low electron doses the irradiation leads to decrease in the wetting of a dielectric surface due to induced surface electric potential. The higher electron charge leads to formation of a chemical monolayer on material's surface. It has been found that the electron irradiation strongly modifies the surface free energy of SiO2 by decreasing its total surface free energy value, almost twice. However, electron-induced variations of dispersive and polar components of the surface free energy are quite different and depend of incident electron charge.

Original languageEnglish
Pages (from-to)5042-5049
Number of pages8
JournalSurface Science
Volume601
Issue number21
DOIs
StatePublished - 1 Nov 2007

Keywords

  • Surface energy
  • Surface modification
  • Wetting

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