کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1618483 | 1005706 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pure and silver (2.5-40Â vol%) modified TiO2 thin films deposited by radio frequency magnetron sputtering at room temperature: Surface topography, energy gap and photo-induced hydrophilicity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Ag-TiO2 nanostructured thin films with silver volume fraction of 0-40% were deposited on silicon and quartz substrates by radio frequency (RF) magnetron sputtering. The phase structure, surface composition, surface topography, optical properties, and hydrophilicity of the films were characterized by X-ray diffractometer, X-ray photoelectron energy spectrometer, atomic force microscope, ultraviolet-visible spectrophotometer, and water contact angle apparatus. The relation of hydrophilic property and silver content was studied in detail. It was found that silver content influences microstructure of TiO2 thin films, and silver in the films is metallic Ag (Ag0). Hydrophilic behavior of the films increases with the increase of silver content up to 5Â vol% Ag and then decreases. A suitable amount (around 5Â vol% Ag) of silver addition can significantly enhance the hydrophilicity of TiO2 films. The hydrophilic behavior of the films is discussed in terms of the synergic effects of defective site, energy gap, surface roughness, and grain size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 501, Issue 1, 2 July 2010, Pages 154-158
Journal: Journal of Alloys and Compounds - Volume 501, Issue 1, 2 July 2010, Pages 154-158
نویسندگان
Fanming Meng, Fei Lu,