کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1476627 991158 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of solvents on the formation of sol–gel-derived Bi12SiO20 thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The effects of solvents on the formation of sol–gel-derived Bi12SiO20 thin films
چکیده انگلیسی

The sol–gel method was used to synthesize Bi12SiO20 thin films. Two synthesis routes with two different solvents, i.e., 2-ethoxyethanol and acetic acid, were used and compared. Thin films were deposited onto Pt/TiO2/SiO2/Si substrates by spin-coating at 3000 rpm and annealed at 700 °C for 1 h. A different coordination of the bismuth ion was observed in the sols prepared with acetic acid (AcOH), and as a result, stable sols were formed with a shorter gelation time tG = 84 h (c = 0.76 M), when compared with the sols prepared from 2-ethoxyethanol (EtoEtOH) tG = 580 h (c = 0.76 M). The microstructures of the Bi12SiO20 thin films prepared from sols using EtoEtOH were homogeneous and dense. On the other hand, a porous microstructure was observed for the Bi12SiO20 thin films deposited from the sol in which AcOH was used as the solvent.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 30, Issue 12, September 2010, Pages 2475–2480
نویسندگان
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