کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1463297 989645 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of the excess of bismuth on the morphology and properties of the BaBi2Nb2O9 thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Effect of the excess of bismuth on the morphology and properties of the BaBi2Nb2O9 thin films
چکیده انگلیسی

In this study, the effect of bismuth content on the crystal structure, morphology and electric properties of barium bismuth niobate (BaBi2Nb2O9) thin films was explored with the aid of X-ray diffraction (XRD), scanning electron microcopy (SEM), atomic force microscopy (AFM) and dielectric properties. BaBi2Nb2O9 (BBN) thin films have been successfully prepared by the polymeric precursor methods and deposited by spin coating on Pt/Ti/SiO2/Si (1 0 0) substrates. The phase formation, the grain size and morphology of the thin films were influenced by the addition of bismuth in excess. It was observed that the formation of single phase BBN for films was prepared with excess of bismuth up to 2 wt%. The films prepared with excess of the bismuth showed higher grain size and better dielectric properties. The 2 wt% bismuth excess BBN thin film exhibited dielectric constant of about 335 with a loss of 0.049 at a frequency of 100 kHz at room temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 35, Issue 8, December 2009, Pages 3143–3146
نویسندگان
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