Synthesis and luminescence properties of red-emitting M2Si5N8:Eu2+-based (M=Ca,Sr, Ba) phosphors by a simple nitrate reduction |
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| Authors: | ChangCheng Chen ErQing Xie |
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| Institution: | 1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
2. School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China
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| Abstract: | M2Si5N8:Eu2+-based (M=Ca, Sr, Ba) red-emitting phosphors are fabricated at relatively low temperature (1200°C) and atmospheric pressure using a simple solid-state reaction process. Several processing parameters are systematically investigated to optimize the phosphors structural characterization and photoluminescence performance, including the amount of europium and the properties of the precursor materials. The as-prepared M2Si5N8:Eu2+-based (M=Ca, Sr, Ba) phosphors are orange in color and are intensively emitted in the red region of 580–670 nm under 465 nm excitation. |
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| Keywords: | MSiN Eu+-based phosphors nitrate reduction luminescence |
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