کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1449977 988719 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of oxygen atmosphere on piezoelectric properties of CaBi2Nb2O9 thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Impact of oxygen atmosphere on piezoelectric properties of CaBi2Nb2O9 thin films
چکیده انگلیسی

CaBi2Nb2O9 (CBNO) thin films were deposited on platinum-coated silicon substrates by the polymeric precursor method, and were annealed in air and in an oxygen atmosphere. The structure, surface morphology and electrical properties of CBNO thin films have been investigated. The presence of an oxygen atmosphere during crystallization of the films affected the structure perfection and morphology, as well as ferroelectric and piezoelectric properties. A reduction in Pr and piezoelectric coefficient, an increase of Vc and displacement of the Curie point is evident in the films crystallized in an oxygen atmosphere. The impact of exposure to the oxygen atmosphere on the creation of defects caused by bismuth and oxygen vacancies between layers was also investigated by X-ray photoelectron spectroscopy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 55, Issue 14, August 2007, Pages 4707–4712
نویسندگان
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