کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1674991 1008972 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sol–gel synthesis and luminescence property of ZnO:(La,Eu)Cl nanocomposite thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Sol–gel synthesis and luminescence property of ZnO:(La,Eu)Cl nanocomposite thin films
چکیده انگلیسی

A kind of ZnO:(La, Eu)Cl nanocomposite thin film phosphor with strong red emission was synthesized by the sol–gel process. X-ray diffraction and scanning electron microscopy characterization indicate that the films were composed of nano-sized grains and a LaOCl phase appeared accompanying with (100) oriented ZnO phase after annealed at 600 °C in oxygen. The photoluminescence properties were investigated by measuring the excitation and emission spectra. These luminescence results suggested that Eu3+ ions could incorporate into the LaOCl lattice and charge transfer occurred between LaOCl phase and Eu3+ ions. La co-doping with Eu-Cl leads to the improvement of the red luminescence of Eu3+ and also suppressed the broad green emission of ZnO host.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 516, Issue 16, 30 June 2008, Pages 5557–5561
نویسندگان
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