| 光谱学与光谱分析 |
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| The Synthesis and Luminescence Measurement of YAG∶Ce3+ Phosphors by High Temperature Solid Phase Method |
| TONG Yi-ping, CHEN Teng |
| Department of Chemical Engineering, Huizhou University, Huizhou 516007, China |
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Abstract YAG∶Ce3+ luminescence materials were prepared by a high-temperature solid state method. Different influencing factors, e.g., the doping amount of Ce3+, sintering temperature, and sintering time, were investigated by the orthogonal experiment method. The results showed that: (1) the influence of three factors on light-emitting intensity of YAG∶Ce3+ phosphors is in the following order, sintering temperature>>sintering time>the doping amount of Ce3+; (2) the optimum conditions for YAG∶Ce3+ phosphors are: sintering temperature 1 600 ℃, the doping amount of Ce3+ 0.10 mol, and sintering time 4 h. Under these conditions, the light-emitting intensity of YAG∶Ce3+ phosphors prepared is the largest. Furthermore, another optimum conditions are: sintering temperature 1 600 ℃, the doping amount of Ce3+ 0.08 mol, and sintering time 4 h, and the YAG∶Ce3+ phosphors prepared are also excellent based on them. The transition properties and spectral features of excitation and luminescence spectra of these synthesized phosphors were analyzed in detail and assigned as Ce3+ 4f—5d transition.
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Received: 2013-01-24
Accepted: 2013-04-15
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Corresponding Authors:
TONG Yi-ping
E-mail: typ2469@163.com
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