Ytterbium ion Yb<3+> activated borotungstate upconversion luminescent material and preparation method thereof
A technology of borotungstate and luminescent materials, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of environmental pollution, high synthesis temperature, etc., and achieve the effects of environmental friendliness, high luminous brightness, and low equipment requirements
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Embodiment 1
[0035] According to the chemical formula Yb 2.85 Eu 0.15 BWO 9 The stoichiometric ratio of each element in 975nm, respectively weigh ytterbium oxide Yb 2 O 3 : 1.404 g, Europium oxide Eu 2 O 3 : 0.066 g, boric acid H 3 BO 3 : 0.1623 g, tungsten oxide WO 3 : 0.597 g, grind and mix well in an agate mortar, select the air atmosphere for the first calcination, the temperature is 550 ℃, the calcination time is 7 hours, then cool to room temperature, take out the sample. After the raw materials calcined for the first time, the mixture was thoroughly mixed and ground again, and the second time was sintered at 750°C in an air atmosphere for 10 hours, cooled to room temperature, and the sample was taken out. After the raw materials calcined for the second time, the mixture was thoroughly mixed and ground again, and the third time was sintered at 950 ° C in an air atmosphere, the sintering time was 8 hours, and the sample was taken out after cooling to room temperature. After t...
Embodiment 2
[0039] According to the chemical formula Yb 2.7 Eu 0.3 BWO 9 The stoichiometric ratio of each element in 975nm, respectively weigh ytterbium oxide Yb 2 O 3 : 1.33 g, Europium oxide Eu 2 O 3 : 0.132 g, boric acid H 3 BO 3 : 0.1623 g, tungsten oxide WO 3 : 0.597 g, grind in an agate mortar and mix evenly, select the air atmosphere for the first calcination, the temperature is 500 ℃, the calcination time is 6 hours, then cool to room temperature, take out the sample. After the raw materials calcined for the first time, the mixture was thoroughly mixed and ground evenly, and the second sintered at 700°C in an air atmosphere for 8 hours, cooled to room temperature, and the sample was taken out. After the raw materials calcined for the second time, the mixture was thoroughly mixed and ground evenly, and the third time was sintered at 900 °C in an air atmosphere for 10 hours, cooled to room temperature, and the sample was taken out. After the raw materials calcined for the t...
Embodiment 3
[0042] According to the chemical formula Yb 2.55 Y 0.45 BWO 9 The stoichiometric ratio of each element in 975nm, respectively weigh ytterbium oxide Yb 2 O 3 : 1.256 g, yttrium oxide Y 2 O 3 : 0.127 g, boric acid H 3 BO 3 : 0.1623 g, tungsten oxide WO 3 : 0.597 g, grind in an agate mortar and mix evenly, select the air atmosphere for the first calcination, the temperature is 400 ℃, the calcination time is 5 hours, then cool to room temperature, take out the sample. After the raw materials calcined for the first time, the mixture was thoroughly mixed and ground evenly, and the second sintered at 680°C in an air atmosphere for 8 hours, cooled to room temperature, and the sample was taken out. After the raw materials calcined for the second time, the mixture was thoroughly mixed and ground evenly, and the third time was sintered at 860°C in an air atmosphere. The sintering time was 9 hours, cooled to room temperature, and the sample was taken out. After the raw materials ...
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