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- W2361424900 abstract "High-brightness blue emitting phosphors Sr3MgSi3O10:Eu2+,Er3+ were synthesized successfully by gel-combustion method in weak reductive environment.The phase structure and luminescent properties of the as-synthesized phosphors were analyzed and characterized by X-ray diffraction and fluorescence spectrophotometer.The results show that Sr3MgSi3O10:Eu2+,Er3+ phosphors possess the tetragonal crystal structure similar to that of Sr2MgSi2O7.The excitation spectrum shows a broad band from 250nm to 450nm,and the strongest excitation peak is at 357 nm.The emission spectrum excited by 357 nm also shows a wide band with the main peak at about 466 nm,which is ascribed to the typical transition from 4f65d1 to 4f7 of Eu2+.According to the emission spectrum of as-synthesized Sr3MgSi3O10∶Eu2+,Er3+ and empirical formula of Van Uitert,it can be deduced that Eu2+ ions occupy Sr2+ sites with coordination number 8 in Sr3MgSi3O10 host.It is found that co-doped Er3+ can sensitize effectively the luninescence of Eu2+ ions in Sr3MgSi3O10 host.The luminescence intensity reaches the strongest when the mole fraction of co-doped Er3+ is 0.04,and it is about 3.3 times of single-doped Eu2+ sample." @default.
- W2361424900 created "2016-06-24" @default.
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- W2361424900 date "2011-01-01" @default.
- W2361424900 modified "2023-09-25" @default.
- W2361424900 title "Preparation and Luminescent Properties of High-brightness Blue-emitting Phosphors Eu~(2+),Er~(3+) Co-doped Sr_3MgSi_3O_(10)" @default.
- W2361424900 hasPublicationYear "2011" @default.
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