Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5399587 | Journal of Luminescence | 2014 | 4 Pages |
Abstract
A novel nitridosilicate phosphor, BaSi7N10:Eu2+, was synthesized via the nitridation of Ba1âxEuxSi alloy. Oxide impurities in the product can be significantly reduced by the use of alloy precursor to obtain a single phase product. The synthesized BaSi7N10:Eu2+ absorbs strongly in the UV-part of the electromagnetic spectrum and exhibits bluish-green light with a peak wavelength at 475Â nm. When temperature is increasing, its emission intensity is decreasing with the broadening full widths at half maximum (FWHM). Interestingly, the afterglow emission of Eu2+ (4f65d1â4f7) could be observed after switching off the 280Â nm excitation source, which to the best of our knowledge is found for the first time. This simple, inexpensive and high-yield synthesis route has a significant potential to be applied to other nitrides.
Keywords
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Jinlan Qin, Haoran Zhang, Bingfu Lei, Hanwu Dong, Yingliang Liu, Jianxin Meng, Mingtao Zheng, Yong Xiao,