کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5359280 1388245 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ageing effects on the wettability behavior of laser textured silicon
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Ageing effects on the wettability behavior of laser textured silicon
چکیده انگلیسی
In the present work we investigate the ageing of acid cleaned femtosecond laser textured 〈1 0 0〉 silicon surfaces. Changes in the surface structure and chemistry were analysed by Rutherford backscattering spectrometry (RBS) and X-ray photoelectron spectroscopy (XPS), in order to explain the variation with time of the water contact angles of the laser textured surfaces. It is shown that highly hydrophobic silicon surfaces are obtained immediately after laser texturing and cleaning with acid solutions (water contact angle > 120°). However these surfaces are not stable and ageing leads to a decrease of the water contact angle which reaches a value of 80°. XPS analysis of the surfaces shows that the growth of the native oxide layer is most probably responsible for this behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 257, Issue 7, 15 January 2011, Pages 2604-2609
نویسندگان
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