کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1516016 1511544 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rare-earth free self-activated and rare-earth activated Ca2NaZn2V3O12 vanadate phosphors and their color-tunable luminescence properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Rare-earth free self-activated and rare-earth activated Ca2NaZn2V3O12 vanadate phosphors and their color-tunable luminescence properties
چکیده انگلیسی


• Rare-earth free self-activated and Eu3+ or Sm3+ doped vanadate phosphors Ca2NaZn2V3O12 were synthesized.
• The pure-phase garnet structure was verified by the XRD Rietveld refinement.
• The energy transfer behaviors from VO43− to Eu3+/Sm3+ ions have been demonstrated.

Novel rare-earth free self-activated and Eu3+ or Sm3+ doped vanadate phosphors Ca2NaZn2V3O12 were synthesized via the solid-state reaction route. The pure-phase garnet structures in this system were verified by the X-ray diffraction (XRD) and Rietveld refinement. The self-activated luminescence and rare earth doped luminescence behaviors have been studied in detail. The broad-band green emission can be found from the as-prepared Ca2NaZn2V3O12 compound, originating from the VO43− emission. The energy transfer behaviors from VO43− to Eu3+/Sm3+ ions in Ca2NaZn2V3O12:A (A=Eu3+, Sm3+) phosphors have been demonstrated by photoluminescence (PL) and decay time measurement. All the results indicate that self-activated Ca2NaZn2V3O12 and the Eu3+ or Sm3+ doped Ca2NaZn2V3O12 phosphors show great potential for the application in the near-UV excited white LEDs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 74, Issue 10, October 2013, Pages 1439–1443
نویسندگان
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