کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1623803 1516413 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of structural evolution and photoluminescent properties at room temperature of Ca(Zr,Ti)O3 powders
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Study of structural evolution and photoluminescent properties at room temperature of Ca(Zr,Ti)O3 powders
چکیده انگلیسی

Calcium zirconate titanate, Ca(Zr0.05Ti0.95)O3 (CZT) powders has been synthesized by the polymeric precursor method. The structural evolution and analysis of the CZT powders were monitored by the X-ray diffraction (XRD), Fourier transform Raman spectroscopy (FT-Raman) and ultraviolet–visible absorption spectroscopy (UV–vis). The decomposition of precursor resin was accompanied by evolution of thermogravimetric analysis (TGA) and differential thermogravimetric analysis (DTA). UV–vis measurements suggested that the presence of intermediary energy levels in the band gap are favorable for the intense and broad photoluminescence (PL) in structurally disordered CZT powders at room temperature. TGA and DTA have been employed to correlate the ranges of temperature with the structural order–disorder degree in the CZT lattice that are responsible by PL emission.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 464, Issues 1–2, 22 September 2008, Pages 340–346
نویسندگان
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