Perovskite metal halide zero-dimensional quantum dot composite material and preparation method thereof, and application of organic amine salt
A metal halide, zero-dimensional quantum technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, luminescent materials, etc., can solve the problem of non-adjustable particle size of zero-dimensional quantum dot composite materials
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[0056] A first embodiment of the present invention provides a method for preparing a perovskite metal halide zero-dimensional quantum dot composite material. The preparation method of the perovskite metal halide zero-dimensional quantum dot composite comprising the following steps:
[0057] Providing a first precursor, a second precursor, a third precursor, and a solvent, wherein the first precursor is selected from halogenated methylamine, methylhydramidine halide, cesium halide, cesium trifluoroacetate, cesium stearate, and at least one of the cesium acetate, the second precursor is selected from lead halogenated, stannous halide, lead stearate, and lead acetate in at least one, the third precursor is an organic amine salt, the anion of the organic amine salt is a halo ion, the cation of the organic amine salt comprises a fat ring skeleton structure, aromatic ring skeleton structure, or thiophene ring skeleton structure, and binding to the fat ring backbone structure, aromatic r...
Embodiment 1
[0105] Provides cesium bromide (0.0596 g), lead bromide (0.2936 g), 4-bromo-alpha-phenethylamine hydrogen bromide salt (0.3147 g), trimethylammonium bromide (0.0056 g), tetrabutyrphosphonium chloride (0.0114 g), and dimethyl sulfoxide (2 mL);
[0106] The cesium bromide, lead bromide, 4-bromo-alpha-phenethylamine hydrogen bromide salt, trimethylammonium bromide, and tetrabutylphosphonium chloride are dissolved in dimethyl sulfoxide, and shaken under sealed conditions for 4h to fully dissolve to obtain a precursor solution;
[0107] Filter the precursor solution with a filter with a pore size of 0.22 μm and store it in a nitrogen environment for use;
[0108] Provide a clear glass substrate with plasma surface activation treatment, homogenizer, and chlorobenzene (200μL);
[0109] Take 100μL of the precursor solution and add it dropwise to the transparent glass substrate activated by the surface of the plasma, by the homogenizer at a speed of 6000r.p.m the precursor liquid is spin-c...
Embodiment 2
[0114] Cesium bromide (0.0681 g), cesium chloride (0.0067 g), lead bromide (0.2936 g), 4-bromo-alpha-phenethylamine hydrogen bromide salt (0.2248 g), trimethylammonium bromide (0.0056 g), tetrabutyrphosphonium chloride (0.0114 g), and dimethyl sulfoxide (2 mL);
[0115] The cesium bromide, cesium chloride, lead bromide, 4-bromo-alpha-phenethylamine hydrogen bromide salt, trimethylammonium bromide, and tetrabutylphosphonium chloride are dissolved in dimethyl sulfoxide, and shaken under sealed conditions for 4h to fully dissolve to obtain a precursor solution;
[0116] Filter the precursor solution with a filter with a pore size of 0.22 μm and store it in a nitrogen environment for use;
[0117] Provide a clear glass substrate with plasma surface activation treatment, homogenizer, and chlorobenzene (200μL);
[0118] Take 100μL of the precursor solution and add it dropwise to the transparent glass substrate activated by the surface of the plasma, by the homogenizer at a speed of 6000...
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