Compound R2MB10O10 as non-linear optical crystal and its preparation and use
A technology of R2MB10O19 and nonlinear optics, which is applied in the field of compound R2MB10O19 nonlinear optical crystals and its preparation method and application, which can solve the problems of high cost, affecting the large-scale application of fully solidified blue-green lasers, and slow growth speed.
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[0016] Compound R of the present invention 2 MB 10 o 19 The preparation method is characterized in that will contain R 2 o 3 and MO and B 2 o 3 After the compound raw materials with a molar ratio of 1:1:5 are mixed evenly, the chemical synthesis reaction is carried out; the compound raw materials used can be the corresponding oxides or chlorides or carbonates or nitrates or oxalates or borates of R and M and H 3 BO 3 or B 2 o 3 .
[0017] In principle, with the above system, compound R can be prepared by general chemical synthesis methods 2 MB 10 o 19 ; Preferred solid-phase reaction method, that is: will contain R 2 o 3 and MO and B 2 o 3 After the compound raw materials with a molar ratio of 1:1:5 are mixed evenly, they are heated for solid-state reaction, and the chemical expression can be obtained as R 2 MB 10 o 19 compound of.
[0018] The following are a few typical R 2 MB 10 o 19 chemical reaction:
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Embodiment 1
[0045] Preparation of powdered La 2 CaB 10 o 19 compound.
[0046] 81.45 g La 2 o 3 and 25.02 g CaCO 3 and 154.58 g H 3 BO 3 After mixing evenly, put it into a Φ50×35mm open platinum crucible, put the crucible into a muffle furnace (heating electric furnace), sinter it at a constant temperature of 950°C for 48 hours, and obtain La 2 CaB 10 o 19 compound powder. Determined by differential thermal analysis, the melting point of the same component is about 1067°C.
[0047] Using the same method as above, the La 2 o 3 Replaced by other rare earth oxides or Y 2 o 3 , the CaCO 3 Replaced by SrCO 3 or BaCO 3 , can get the corresponding R 2 MB 10 o 19 compound.
Embodiment 2
[0049] Preparation of powder (La 0.96 Nd 0.04 ) 2 CaB 10 o 19 compound.
[0050] 52.13 g La 2 o 3 and 2.243 g Nd 2 o 3 and 16.68 g CaCO 3 and 58.02 g B 2 o 3 After mixing evenly, put it into an open platinum crucible of Φ40×40mm, sinter it at a constant temperature of 980°C for 40 hours, and obtain it after grinding (La 0.96 Nd 0.04 )2 CaB 10 o 19 compound powder. Compound (La 0.96 Nd 0.04 ) 2 CaB 10 o 19 Has luminous properties.
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