کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5489735 | 1524372 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth and luminescent properties of single crystalline films of Ce3+ doped Pr1âxLuxAlO3 and Gd1âxLuxAlO3 perovskites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The paper is dedicated to development of UV emitting scintillating screens for microimaging applications based on the single crystalline films (SCFs) of Ce doped Gd1âxLuxAlO3 and Pr1âxLuxAlO3 (x=0-1) multicomponent perovskites grown onto YAlO3 (YAP) substrates using the liquid phase epitaxy (LPE) method with the objective to improve the X-ray stopping power. Recently Riva et al. [1] have reported that the full set of GdxLu1âxAlO3 SCFs with x values in x=0â1.0 range can be crystallized on YAP substrates using this technique. We report here that PrxLu1âxAlO3 SCFs with x values in x=0-0.5 range can be grown also by the LPE method from PbO-B2O3 flux onto the same YAP substrates. The structural quality of the films was studied using X-ray diffraction. The optical properties of Ce3+ doped of Gd1âxLuxAlO3 and Pr1âxLuxAlO3 (x=0â1) multicomponent perovskite films, studied by traditional spectroscopic methods, such as absorption, cathodoluminescence, photoluminescence and light yield measurements under α-particles excitation, are also reported in this work. We have shown that Pb2+ flux related impurity has significantly larger influence on the light yield of Pr0.5Lu0.5AlO3:Ce, GdAlO3:Ce and Gd0.5Lu0.5AlO3:Ce SCFs in comparison with the YAP:Ce and LuAlO3:Ce counterparts grown onto YAP substrates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 457, 1 January 2017, Pages 220-226
Journal: Journal of Crystal Growth - Volume 457, 1 January 2017, Pages 220-226
نویسندگان
Yu Zorenko, V. Gorbenko, T. Zorenko, T. Voznyak, F. Riva, P.A. Douissard, T. Martin, A. Fedorov, A. Suchocki, Ya. Zhydachevskii,