کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1787360 1023439 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
White light emitting from single phased K2Ca1−x−yP2O7: xEu2+, yMn2+ phosphors under UV excitation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
White light emitting from single phased K2Ca1−x−yP2O7: xEu2+, yMn2+ phosphors under UV excitation
چکیده انگلیسی

A single phased white light emitting phosphors K2Ca1−x−yP2O7: xEu2+, yMn2+ were synthesized by solid state reaction method. The Effective energy transfer occurs in this phosphor due to the large spectral overlap between the emission of Eu2+ and the excitation of Mn2+. The emission hue of K2Ca1−x−yP2O7: xEu2+, yMn2+ from blue to white light can be obtained by tuning the Eu2+/Mn2+ content ratio. The energy transfer mechanism from Eu2+ to Mn2+ in this phosphor was carefully investigated and demonstrated to be via the dipole–quadrupole interaction.


► A single phased white light emitting phosphors K2Ca1−x−yP2O7: xEu2+, yMn2+ were synthesized by solid state reaction method.
► The effective energy transfer from Eu2+ to Mn2+ occurs in this phosphor due to the large spectral overlap between the emission of Eu2+ and the excitation of Mn2+.
► The emission hue of K2Ca1−x−yP2O7: xEu2+, yMn2+ from blue to white light can be obtained by tuning the Eu2+/Mn2+ content ratio.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 11, Issue 6, November 2011, Pages 1374–1378
نویسندگان
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