Nanostructuring of Iron Surfaces by Low-Energy Helium Ions

TitleNanostructuring of Iron Surfaces by Low-Energy Helium Ions
Publication TypeJournal Article
Year of Publication2014
AuthorsI. Tanyeli, L. Marot, M.CM van de Sanden, G. De Temmerman
JournalACS Applied Materials & Interfaces
Volume6
Issue5
Pagination3462-3468
Abstract

The behavior of iron surfaces under helium plasma exposure is investigated as a function of surface temperature, plasma exposure time, and He ion flux. Different surface morphologies are observed for a large process parameter range and discussed in terms of temperature-related surface mechanisms. Surface modification is observed under low-He ion flux (in the range of 1020 m-2 s-1) irradiation, whereas fiberlike iron nanostructures are formed by exposing the surface to a high flux (in the range of 1023 m 2 s 1) of low-energy He ions at surface temperatures of 450-700 °C. The effects of surface temperature and plasma exposure time on nanostructures are studied. The results show that surface processing by high-flux low-energy He ion bombardment provides a size-controlled nanostructuring on iron surfaces.

URLhttp://pubs.acs.org/doi/abs/10.1021/am405624v
DOI10.1021/am405624v
Division

PSI

Department

PSI-E

PID

5769e61d81a8b9d8691f3a3a5bab126c

Alternate TitleACS Appl. Mater. Interfaces

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