Composite material and its preparation method and light-emitting diode
A technology of composite materials and polymers, applied in the manufacture of semiconductor/solid-state devices, electric solid-state devices, semiconductor devices, etc., can solve the problems of unbalanced electron transport rate and hole transport rate, and improve recombination efficiency and luminous purity, The effect of improving quantum efficiency and improving work efficiency
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preparation example Construction
[0044] The preparation method of the above-mentioned composite material is as follows.
[0045] Correspondingly, a preparation method of a composite material, such as figure 2 described, including the following steps:
[0046] S01, providing nanometer metal oxides, photosensitizers and polymerized monomers, said polymerized monomers comprising at least 1 hydroxyl group; performing said nanometer metal oxides, said polymerized monomers and said photosensitizers under light-proof conditions Mix to obtain a mixed solution;
[0047] S02, subjecting the mixed liquid to a photocuring reaction, so that the polymerizable monomers are polymerized to form polymers.
[0048] In step S01, the nanometer metal oxide and the polymerized monomer are basically the same as those described above, and will not be repeated here to save space.
[0049] Specifically, the nanometer metal oxide, the polymerized monomer and the photosensitizer are mixed under the condition of avoiding light to form...
Embodiment approach
[0053] As an embodiment, the photosensitizer is selected from benzophenone, 1-hydroxycyclohexyl phenone, 2,2-dimethoxy-2-phenylacetophenone (benzoin dimethyl ether), 4- Isopropylthioxanthone, 2-methylbenzophenone, 2,4-diethylthioxanth-9-one, 4-chlorobenzophenone, 4-isobutylphenyl-4' - one of methylphenyliodonium hexafluorophosphate, 4,4'-bis(dimethylamino)benzophenone and 2-ethylhexyl 4-(dimethylamino)benzoate. The above-mentioned photosensitizer has good light-induced cross-linking polymerization activity, can promote the cross-linking polymerization between the above-mentioned polymerized monomers, improve production efficiency, and does not affect the polymer formed by the composite of the nanometer metal oxide.
[0054] Specifically, in step S02, the mixed solution is subjected to a photocuring reaction, so that the polymerized monomers are polymerized to form a polymer. Since the formed polymer contains several hydroxyl groups, part or all of the hydroxyl groups in the p...
Embodiment 1
[0071] This embodiment provides a method for preparing a quantum dot light-emitting diode, comprising the following steps:
[0072] S11, providing an anode, and sequentially depositing a hole injection layer, a hole transport layer, and a quantum dot light-emitting layer on the anode;
[0073] S12, provide nanometer metal oxide ZnO ethanol solution (30mg / mL, 10mL), 0.01g photosensitizer benzophenone and polymerized monomer hydroxyethyl methacrylate (purity higher than 99.9%, 1mL), ZnO ethanol solution 1. The polymerized monomers are mixed under light-shielding conditions, stirred for 2 minutes, the solution is uniformly dispersed and fully dissolved, and then a photosensitizer is added to obtain a mixed solution; the mixed solution is inkjet printed on the quantum dot light-emitting layer, and then Irradiate with ultraviolet light for 10 minutes, then raise the temperature to 80°C at a rate of 5°C / s, and anneal for 30 minutes to prepare the electron transport layer;
[0074] ...
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Abstract
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