Preparation method of nanocrystalline based on blue-violet light
A technology of nanocrystals and purple light, applied in the field of nanocrystals, can solve the problems of poor stability of perovskite nanocrystals, and achieve the effects of improving air stability, low energy consumption, and narrow half-peak width
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Embodiment 1
[0028] Such as Figure 1-7 As shown, a preparation method based on blue-violet light nanocrystals provided by an embodiment of the present invention includes the following steps:
[0029] Step 1: Put octadecene, oleic acid and cesium carbonate in a three-necked flask, heat to 130°C under an inert gas atmosphere, and stir until the solution dissolves to obtain a precursor solution, in which octadecene and oleic acid The volume ratio is 10:1, the concentration of cesium carbonate is 0.04g / mL, and the inert gas is N 2 ;
[0030] Step 2: Add octadecene, lead chloride and zinc chloride to a 500mL three-necked bottle to vacuumize, then pass in an inert gas, add a certain amount of oleic acid and oleylamine when heated to 130°C, and obtain clarification after stirring Clear solution in which the inert gas is N 2 , the volume ratio of octadecene, oleic acid and oleylamine is 20:3:3, and the molar ratio of zinc chloride and lead chloride is 0.1:1;
[0031] Step 3: Heat the solution...
Embodiment 2
[0034] Such as Figure 1-7 As shown, a preparation method based on blue-violet light nanocrystals provided by an embodiment of the present invention includes the following steps:
[0035] Step 1: Put octadecene, oleic acid and cesium carbonate in a three-necked flask, heat to 130°C under an inert gas atmosphere, and stir until the solution dissolves to obtain a precursor solution, in which octadecene and oleic acid The volume ratio is 10:1, the concentration of cesium carbonate is 0.04g / mL, and the inert gas is N 2 ;
[0036] Step 2: Add octadecene, lead chloride and zinc chloride to a 500mL three-necked bottle to vacuumize, then pass in an inert gas, add a certain amount of oleic acid and oleylamine when heated to 130°C, and obtain clarification after stirring Clear solution in which the inert gas is N 2, the volume ratio of octadecene, oleic acid and oleylamine is 20:3:3, and the molar ratio of zinc chloride and lead chloride is 0.3:1;
[0037] Step 3: Heat the solution ...
Embodiment 3
[0040] Such as Figure 1-7 As shown, a preparation method based on blue-violet light nanocrystals provided by an embodiment of the present invention includes the following steps:
[0041] Step 1: Put octadecene, oleic acid and cesium carbonate in a three-necked flask, heat to 130°C under an inert gas atmosphere, and stir until the solution dissolves to obtain a precursor solution, in which octadecene and oleic acid The volume ratio is 10:1, the concentration of cesium carbonate is 0.04g / mL, and the inert gas is N 2 ;
[0042] Step 2: Add octadecene, lead chloride and zinc chloride to a 500mL three-necked bottle to vacuumize, then pass in an inert gas, add a certain amount of oleic acid and oleylamine when heated to 130°C, and obtain clarification after stirring Clear solution in which the inert gas is N 2 , the volume ratio of octadecene, oleic acid and oleylamine is 20:3:3, and the molar ratio of zinc chloride and lead chloride is 1.03:1;
[0043] Step 3: Heat the solutio...
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Abstract
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