کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1639715 1517038 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication and characteristics of rutile TiO2 nanoparticles induced by laser ablation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Fabrication and characteristics of rutile TiO2 nanoparticles induced by laser ablation
چکیده انگلیسی
The laser ablation technique was employed to prepare TiO2 nanoparticles by pulsed laser ablation of a titanium target immersed in the poly-(vinylpyrrolidone) solution using wavelength of 1 064 nm. The as-prepared products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicate that the rutile TiO2 nanoparticles are synthesized at room temperature and the average size is about 35 nm with narrow size distribution. A possible formation mechanism was discussed and the UV-vis absorption and photoluminescence were measured. The optical study shows that rutile nanoparticle possesses direct optical transition with band gap of 3.15 eV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 19, Supplement 3, December 2009, Pages s743-s747
نویسندگان
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