Pixelated scintillator film and preparation method thereof
A scintillator, pixelated technology, applied in chemical instruments and methods, luminescent materials, etc., can solve the problems of limiting the practical application of traditional scintillators, reducing imaging resolution, and the high toxicity of thallium element, achieving the solution of harsh preparation conditions, The effect of improving spatial resolution and high light yield
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[0036] According to another typical embodiment of the present invention, a method of preparing a pixelated scintillator film is provided, and the preparation method comprises:
[0037] S1. Get CS 3 Cu 2 X 5 Crystals; in this embodiment, specifically: S1.1. Quantitative scale CSX and CUX, add to a volume of HX solution, heating CS 3 Cu 2 X 5 Transparent solution; where X is a halogen element; where CS 3 Cu 2 X 5 In the transparent solution, the concentration of CSX and CUX is 0.12mol L. -1 -0.22 mol L -1 At the same time as CSX and CUX are added to the HX solution, the total volume of the solution is reduced by 2% -10% of secondary phosphoric acid;
[0038] S1.2. Will CS 3 Cu 2 X 5 Transparent solution cools down, obtain CS 3 Cu 2 X 5 Crystal; specifically, 3 Cu 2 X 5 The transparent solution cools down at a rate of 1 ° C / min to 5 ° C / min until it is reduced to room temperature, CS 3 Cu 2 X 5 Due to the decrease in solubility, crystals were precipitated, then flush multiple tim...
Embodiment 1
[0049] Add CSCL and Cucl to HCl solution, CSCL and Cucl's puzzle concentration 0.2 mol L -1 Further, 2% hypophosphoric acid with a total volume ratio of the solution is reduced, and the control cooling speed is 1 ° C / min, and the solution is reduced to room temperature, CS 3 Cu 2 CL 5 Due to the decrease in solubility, crystals were precipitated, rinsed multiple times with isopropanol and then dried in vacuo;
[0050] Worts a good CS 3 Cu 2 CL 5 The crystal is ground into powder, placed on the quartz sheet to heat melting, then put a porous alumina template, placing a preheated quartz piece above, to cool down to room temperature, peel the stone, to obtain a pixelated CS 3 Cu 2 CL 5 film.
Embodiment 2
[0052] The CSBR and CUBR were added to the HBR solution, the purified concentration of CSBR and CUBR was 0.2 mol L -1 And the 2% hypophosphoric acid of the total volume ratio of the solution was added dropwise, and the controlled cooling speed was 5 ° C / min, and the solution was lowered to room temperature, CS 3 Cu 2 Br 5 Due to the decrease in solubility, crystals were precipitated, rinsed multiple times with isopropanol and then dried in vacuo;
[0053] Worts a good CS 3 Cu 2 Br 5 The crystal is ground into powder, placed on the quartz sheet to heat melting, then put a porous alumina template, placing a preheated quartz piece above, to cool down to room temperature, peel the stone, to obtain a pixelated CS 3 Cu 2 Br 5 film.
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