Fluorescence emission spectrum and energy transfer in Eu and Mn co-doped Ba2Ca(BO3)2 phosphors |
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| Authors: | Enhai Song Weiren Zhao Wei Zhang Huachu Ming Yuchun Yi Mingkang Zhou |
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| Institution: | aGuangdong University of Technology, School of Physics and Optoelectronic Engineering, Guangzhou 510006, China;bDongguan Xinguanyuan Electronic Co., Ltd, Dongguan, Guangdong 523500, China;cHuizhou Unihero Semiconductor Lighting Technology CO. Ltd, Huizhou, Guangdong 516006, China |
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| Abstract: | Eu2+ and Mn2+ co-doped Ba2Ca(BO3)2 phosphors yield two emission bands consisting of green and red components under the excitation of 360 nm, which shows a great potential for white LEDs. Effective energy transfer occurs in Eu2+/Mn2+ co-doped Ba2Ca(BO3)2 host due to the large spectral overlap between the emission of Eu2+ and the excitation of Mn2+. The energy transfer from Eu2+ to Mn2+ is thoroughly investigated by their excitation, emission and photoluminescence decay behaviors, and is demonstrated to be via the dipole–quadrupole interaction. |
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| Keywords: | Luminescence Energy transfer Phosphors |
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