A potential green-emitting phosphor Ca8Mg(SiO4)4Cl2:Eu for white light emitting diodes prepared by sol-gel method |
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| Authors: | Chongfeng Guo Ming LiYan Xu Ting LiZhaoyu Ren Jintao Bai |
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| Institution: | a National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base) in Shaanxi province, National Photoelectric Technology and Functional Materials & Application of Science and Technology International Cooperation Base, Institute of Photonics & Photon-Technology and Department of Physics, Northwest University, Xi’an, 710069, PR China
b Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Hubei Province, Wuhan, 430074, PR China |
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| Abstract: | A potential green emitting phosphor Ca8Mg(SiO4)4Cl2:Eu2+ was prepared by modified sol-gel method. The factors those affect the photoluminescence intensity including heating temperature, the usage of the chlorine source CaCl2 and the concentration of dopant Eu2+ were also investigated in detail. As comparison, the phosphor prepared by solid-state reaction was also prepared. The phosphors show intense absorption in the range of 375-450 nm, which makes it a potential candidate of green emitting phosphor used for near-UV or blue light excited white LEDs. |
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| Keywords: | Phosphor LEDs Green emission |
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