Gd < 3 + >-doped micron crystal material as well as preparation method and application thereof
A crystal material and crystal technology, applied in the field of Gd3+ doped micron crystal material and its preparation, can solve the problems of limited application, low conversion fluorescence efficiency and low luminous intensity of rare earth luminescent materials, and achieve up-conversion luminescence enhancement, excited state particles The effect of increasing the number and increasing the energy transfer rate
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Embodiment 1
[0040] This embodiment provides a Gd 3+ Doped microcrystalline material, in this embodiment, its chemical formula is LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ , and Gd 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 10mol% of the total amount of rare earth elements, Yb 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 20mol% of the total amount of rare earth elements, Ho 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 1 mol% of the total amount of rare earth elements in the medium, and the microcrystalline material of this embodiment is denoted as LiY 0.69 F 4 :Yb 0.2 / Ho 0.01 / Gd 0.1 .
[0041] And the preparation method of the microcrystalline material of this embodiment is as follows:
[0042] 1 mmol of dispersant EDTA was placed in 20 mL of water, heated at a constant temperature of 60 °C, stirred at a rate of 1200 r / min for 10 min, so that EDTA was fully dissolved and uniformly dispersed in the water, then 1 mmol of rare earth eleme...
Embodiment 2
[0047] This embodiment provides a Gd-doped 3+ LiYF 4 :Yb 3+ / Ho 3+ Microcrystalline material, in this embodiment, its chemical formula is LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ , and Gd 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 20mol% of the total rare earth elements, Yb 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 20mol% of the total amount of rare earth elements, Ho 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 1 mol% of the total amount of rare earth elements in the medium, and the microcrystalline material of this embodiment is denoted as LiY 0.59 F 4 :Yb 0.2 / Ho 0.01 / Gd 0.2 .
[0048] And the difference between the preparation method of the microcrystalline material of the present embodiment and the embodiment 1 is only:
[0049] In this embodiment, the rare earth element source is Y(NO 3 ) 3 ·6H 2 O, Gd (NO 3 ) 3 ·6H 2 O, Yb (NO 3 ) 3 ·5H 2 O and Ho(NO 3 ) 3 ·5H 2 mixed solution of O, and Y (NO 3 ) ...
Embodiment 3
[0051] This embodiment provides a Gd-doped 3+ LiYF 4 :Yb 3+ / Ho 3+ Microcrystalline material, in this embodiment, its chemical formula is LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ , and Gd 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 30mol% of the total amount of rare earth elements, Yb 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 20mol% of the total amount of rare earth elements, Ho 3+ The doping concentration of LiYF 4 :Yb 3+ / Ho 3+ / Gd 3+ 1 mol% of the total amount of rare earth elements in the medium, and the microcrystalline material of this embodiment is recorded as LiY 0.49 F 4 :Yb 0.2 / Ho 0.01 / Gd 0.3 . And the difference between the preparation method of the microcrystalline material of the present embodiment and the embodiment 1 is only:
[0052] In this embodiment, the rare earth element source is Y(NO 3 ) 3 ·6H 2 O, Gd (NO 3 ) 3 ·6H 2 O, Yb (NO 3 ) 3 ·5H 2 O and Ho(NO 3 ) 3 ·5H 2 mixed solution of O, and Y (NO 3 ...
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