کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1881639 1533443 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Monoclinic HfO2:Eu X-ray phosphor
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Monoclinic HfO2:Eu X-ray phosphor
چکیده انگلیسی

HfO2 and HfO2:Eu powders were synthesized with Pechini method at temperatures in the range of 600–1500 °C. Structural, radioluminescence and photoluminescence properties of the powders were investigated. The highest light output of about 20% of the efficiency of commercial GOS:Eu was found for materials containing 0.5% of Eu and prepared at 1500 °C. The data shows, that further improvement of light output could be obtained if materials are processed at yet higher temperatures. Emission spectra indicate that Eu3+ experiences variety of symmetries of its surroundings. Undoped materials produce broad band emission peaking at 480 nm and showing a significant afterglow.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 45, Issues 3–6, March–July 2010, Pages 493–496
نویسندگان
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