کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1458635 | 989580 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rare earth titano-silicates for high k gate dielectric applications
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
The present paper explores the properties of rare earth titano-silicates compounds for high k applications. RE2Ti2SiO9 (RE=La, Pr and Nd) ceramic compounds were prepared using conventional solid state reaction route. Its structural, dielectric, optical and thermal properties were investigated. It was found that these materials possess a high dielectric constant in the range of 20–34 at room temperature, which is greater than that of HfO2. The UV Visible absorption spectra indicates reasonably large band gap of above 5 eV. Further these compounds also have low coefficient of thermal expansion of less than 9 ppm/°C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 9, July 2016, Pages 10886–10891
Journal: Ceramics International - Volume 42, Issue 9, July 2016, Pages 10886–10891
نویسندگان
M. Rakhi, G. Subodh,