کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
81094 49422 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low-temperature synthesis of TiO2 nanoparticles and preparation of TiO2 thin films by spray deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Low-temperature synthesis of TiO2 nanoparticles and preparation of TiO2 thin films by spray deposition
چکیده انگلیسی

Low-temperature (180–240 °C) synthesis of nanocrystalline titanium dioxide (TiO2) by surfactant-free solvothermal route is investigated. Titanium iso-propoxide is used as the precursor and toluene as the solvent. Different precursors to solvent weight ratios have been used for the synthesis of TiO2 nanoparticles. For the weight ratios 15/100, 25/100 and 35/100 the X-ray diffractograms show the formation of nanocrystalline TiO2. The X-ray diffraction and transmission electron microscopy studies shows that the product has anatase crystal structure (for temperatures <200 °C) with average particle size below 15 nm. The films deposited by spray deposition method using these nanoparticles show the crystalline and porous nature of the films. The present method of deposition also avoids the post-treatment (sintering) of the films. The nanoparticles thus prepared and the films can be used for gas sensing and biological applications and also as photo-electrodes for dye-sensitized solar cells.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 91, Issue 12, 23 July 2007, Pages 1075–1080
نویسندگان
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