We observed that hard X-ray irradiation modifies the wettability of a variety of inorganic materials. The smooth surfaces of all tested inorganic materials (ZnO, p-Si, Al2O3, SrTiO3, TiN, ZnS, CuO, Ag2O, and Cr2O3) change during it-radiation to a state of superhydrophilic wettability, and such changes are explained by the accumulation of positive surface charges by photoelectron emission. The initial wettability state is re-established within several minutes of storage in deionized water.
Type
research article
Web of Science ID
WOS:000263373600012
Author(s)
Date Issued
2009
Published in
Volume
25
Start page
1927
End page
1929
Subjects
Editorial or Peer reviewed
REVIEWED
Written at
EPFL
Available on Infoscience
November 30, 2010
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