阅读说明：本技术 量子点组合物及其在制备量子点发光器件中的应用 (Quantum dot composition and its preparing the application in quantum dot luminescent device ) 是由 刘玉婧 林佳丽 刘雅俊 韩璐 高林华 于 2019-07-15 设计创作，主要内容包括：本发明涉及一种量子点组合物及其在制备量子点发光器件中的应用,所述量子点组合物包括主体树脂、单体、量子点和有机小分子材料。本发明的量子点组合物实现了在不添加额外量子点的条件下提高发光器件的发光强度,显著降低了制备成本。(The present invention relates to a kind of quantum dot composition and its application in quantum dot luminescent device is being prepared, the quantum dot composition includes matrix resin, monomer, quantum dot and organic small molecule material.Quantum dot composition of the invention realizes the luminous intensity that luminescent device is improved under conditions of not adding additional quantum dot, significantly reduces preparation cost.)

1. a kind of quantum dot composition, which is characterized in that the quantum dot composition include matrix resin, monomer, quantum dot and Organic small molecule material.

2. quantum dot composition according to claim 1, which is characterized in that combined with the quantum dot of 100 parts by weight On the basis of object, the content of the matrix resin is 5~70 parts by weight, and the content of the monomer is 20~80 parts by weight, the amount The content of son point is 0.1~20 parts by weight, and the content of the organic small molecule material is 0.1~10 parts by weight.

3. quantum dot composition according to claim 1, which is characterized in that the organic small molecule material is selected from fat At least one of acid, fatty amine, alkyl phosphine compound, alkyl hydrosulfide, pyridine and furans.

4. quantum dot composition according to claim 3, which is characterized in that the organic small molecule material is selected from 14 Acid, hexadecylic acid, stearic acid, stearic acid, oleic acid, lauryl amine, tetradecy lamine, cetylamine, octadecylamine, oleyl amine, dioctylamine, trioctylphosphine At least one of phosphine, trioctylphosphine oxygen phosphorus, dodecylphosphoric acid, myristyl phosphoric acid, cetyl phosphoric acid and octadecyl phosphoric acid.

5. quantum dot composition according to claim 1, which is characterized in that the quantum dot be selected from VI-II race quantum dot, At least one of iii-v quantum dot and group IV-VI quantum dot.

6. quantum dot composition according to claim 1, which is characterized in that the matrix resin is selected from acrylic compounds tree At least one of ester, epoxylite and organic silicon resin.

7. quantum dot composition according to claim 1, which is characterized in that the monomer is selected from acrylate, acrylic acid At least one of isobornyl thiocyanoacetate, styrene and ethyl acetate.

8. quantum dot composition according to claim 1, which is characterized in that the quantum dot composition further includes addition Agent, the additive include at least one of defoaming agent, photoinitiator, levelling agent, coupling agent and inorganic filler.

9. quantum dot composition described in any one of claim 1~8 is preparing the application in quantum dot luminescent device.

10. application according to claim 9, which is characterized in that the quantum dot light emitting device includes quantum dot diaphragm, amount Son point at least one of optical filter and the quantum dot coating of electroluminescent device.

Technical field

The present invention relates to Material Fields, more particularly to a kind of quantum dot composition and its are preparing quantum dot luminescent device In application.

Background technique

Quantum dot is a kind of zero-dimension nano semiconductive luminescent materials, and be otherwise known as artificial atom or nanocrystalline.Its size is 2 Between~10nm, with excitation wavelength range is wide, emission peak is narrow, luminous efficiency is high, can be controlled by changing quantum dot size The features such as its emission peak.Quantum dot is widely used in a variety of industries such as display, medical treatment, solar energy.

In display industry, compare Conventional luminescent material, quantum dot have high color purity, high-luminous-efficiency, good light stability, The colour gamut and color saturation of display backlight can be substantially improved in the advantages that emission wavelength is continuously adjusted.In business application, quantum Point is generally applied in LCD TV in the form of quantum dot diaphragm or quantum dot optical filter.Wherein, quantum dot glue is to prepare The important source material of quantum dot diaphragm, quantum dot ink are the important originals for preparing quantum dot optical filter and quanta point electroluminescent device Material.In order to improve the luminous intensity of quantum dot light emitting device, generallys use and increase quantum in quantum dispensing water or quantum dot ink The method of point accounting, but due to the higher cost of quantum dot, cause the totle drilling cost of quantum dot glue and quantum dot ink to occupy height not Under.

Summary of the invention

Based on this, it is necessary to provide the quantum dot composition and its application that a kind of preparation cost is low and luminous intensity is high.

A kind of quantum dot composition, the quantum dot composition include matrix resin, monomer, quantum dot and small organic molecule Material.

In one of the embodiments, on the basis of the quantum dot composition of 100 parts by weight, the matrix resin Content is 5~70 parts by weight, and the content of the monomer is 20~80 parts by weight, and the content of the quantum dot is 0.1~20 weight Part, the content of the organic small molecule material is 0.1~10 parts by weight.

The organic small molecule material is selected from fatty acid, fatty amine, alkyl phosphine chemical combination in one of the embodiments, At least one of object, alkyl hydrosulfide, pyridine and furans.

In one of the embodiments, the organic small molecule material be selected from tetradecylic acid, hexadecylic acid, stearic acid, stearic acid, Oleic acid, lauryl amine, tetradecy lamine, cetylamine, octadecylamine, oleyl amine, dioctylamine, tri octyl phosphine, trioctylphosphine oxygen phosphorus, dodecyl phosphorus At least one of acid, myristyl phosphoric acid, cetyl phosphoric acid and octadecyl phosphoric acid.

The quantum dot is selected from VI-II race quantum dot, iii-v quantum dot and group IV-VI in one of the embodiments, At least one of quantum dot.

The matrix resin is selected from acrylics, epoxylite and organic silicon in one of the embodiments, At least one of resin.

The monomer is selected from acrylate, isobornyl acrylate, styrene and acetic acid second in one of the embodiments, At least one of ester.

The quantum dot composition further includes additive in one of the embodiments, the additive include defoaming agent, At least one of photoinitiator, levelling agent, coupling agent and inorganic filler.

Above-mentioned quantum dot composition is preparing the application in quantum dot luminescent device.

The quantum dot light emitting device includes quantum dot diaphragm, quantum dot optical filter and electricity in one of the embodiments, At least one of quantum dot coating of electroluminescence device.

By adding organic small molecule material, make in quantum dot composition there are a certain number of free small organic molecules, It can promote capture and utilization of the quantum dot to photon, improve photophore under conditions of not increasing quantum dot accounting to realize The luminous intensity of part significantly reduces cost.

Specific embodiment

To facilitate the understanding of the present invention, below by specific embodiment to invention is more fully described.It is specific real The mode of applying gives preferred embodiment of the invention.But the invention can be realized in many different forms, and unlimited In embodiment described herein.On the contrary, purpose of providing these embodiments is makes understanding to the disclosure It is more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.

The quantum dot composition of one embodiment, the quantum dot composition can be used as quantum dot glue, quantum dot ink etc. It is used to prepare luminescent device, including matrix resin, monomer, quantum dot and organic small molecule material.

Specifically, on the basis of the quantum dot composition of 100 parts by weight, the content of matrix resin can be 5~70 weight Part, the content of monomer can be 20~80 parts by weight, and the content of quantum dot can be 0.1~20 parts by weight, small organic molecule material The content of material can be 0.1~10 parts by weight.In quantum dot composition in above-mentioned content range, organic small molecule material contains It measures moderate, can achieve the effect that preferably to improve luminescent device luminous intensity.

Further, on the basis of the quantum dot composition of 100 parts by weight, the content of matrix resin is 10~60 weight Part, the content of monomer can be 25~70 parts by weight, and the content of quantum dot is 0.5~15 parts by weight, organic small molecule material Content is 3~8 parts by weight.Quantum dot composition in above-mentioned content range is conducive to further increase luminescent device luminous intensity Effect.

Organic small molecule material is concept corresponding with " organic polymer (polymer) material ", is referred to fixed weight Average molecular weight is especially not higher than 10000 weight average molecular weight, does not have the organic material of the degree of polymerization in molecule.Further Ground, the weight average molecular weight of organic small molecule material can be 200~500.

Further, organic small molecule material be selected from fatty acid, fatty amine, alkyl phosphine compound (such as alkyl phosphine oxide, Alkyl phosphonic acid, alkyl hypophosphorous acid etc.), alkyl hydrosulfide, at least one of pyridine and furans.Above-mentioned organic small molecule material is advantageous In promoting capture and utilization of the quantum dot to photon, to improve the luminous intensity of luminescent device.

Specifically, organic small molecule material can include but is not limited to tetradecylic acid, hexadecylic acid, stearic acid, stearic acid, oil Acid, lauryl amine, tetradecy lamine, cetylamine, octadecylamine, oleyl amine, dioctylamine, tri octyl phosphine, trioctylphosphine oxygen phosphorus, dodecylphosphoric acid, Myristyl phosphoric acid, cetyl phosphoric acid and octadecyl phosphoric acid etc..

Quantum dot can be any kind of this field routine.Specifically, quantum dot can selected from VI-II race quantum dot, At least one of iii-v quantum dot and group IV-VI quantum dot.The structure of quantum dot is not particularly limited, and can be core knot The quantum dot of the various conventional structures such as the quantum dot of structure, the quantum dot of core/shell structure, core shell/shell structure quantum dot.Quantum Point can be conventional binary quantum dot or related ternary, quaternary quantum dot etc., itself can have a ligand, or without matching Body.Quantum dot is commercially available, and can also be adopted and is prepared with method known in this field, partial size is generally 1~10nm.

Specifically, quantum dot can include but is not limited to CdSe quantum dot, CdS quantum dot, CdTe quantum, ZnSe quantum Point, ZnTe quantum dot, PbSe quantum dot, PbTe quantum dot, InP quantum dot, InAs quantum dot, InSb quantum dot, GaAs quantum Point, GaP quantum dot, CuInS₂Quantum dot, AgInS₂Quantum dot, carbon quantum dot, perovskite quantum dot, ZnSe/ZnS quantum dot, CdS/ZnS quantum dot, CdSe/ZnS quantum dot, CdSe/CdS/ZnS quantum dot etc..

In one embodiment, matrix resin can be selected from acrylics, epoxylite and organic silicon resin At least one of.

Monomer can be monofunctional monomer, bifunctional monomer, trifunctional monomer and polyfunctional monomer.An implementation wherein In example, monomer is selected from least one of acrylate, isobornyl acrylate, styrene and ethyl acetate.

Quantum dot composition further includes additive in one of the embodiments,.Additive can be for for improving quantum The point functional various conventional additives of composition.Specifically, additive may include defoaming agent, photoinitiator, levelling agent, idol Join at least one of agent and inorganic filler.

Further, photoinitiator can be the conventional kind of this field, such as free radical photo-initiation.Specifically, light Initiator can selected from benzoin and its derivative species photoinitiator, benzil class photoinitiator, alkyl phenones photoinitiator, At least one of acyl group phosphorous oxides photoinitiator, Benzophenone-type light initiator and thioxanthone photoinitiator.Into One step, on the basis of the quantum dot composition of 100 parts by weight, the content of photoinitiator can be 0~5 parts by weight.

Further, defoaming agent is selected from polyethers defoaming agent, organic silicon defoaming agent, polyether-modified silicon class defoaming agent and gathers At least one of type siloxane defoaming agent.Further, on the basis of the quantum dot composition of 100 parts by weight, defoaming The content of agent can be 0~0.2 parts by weight.

Further, levelling agent is selected from least one of acrylic compounds levelling agent and silicone levelling agent.Further Ground, on the basis of the quantum dot composition of 100 parts by weight, the content of levelling agent can be 0~5 parts by weight.

Further, coupling agent is silane coupling agent.Further, it is with the quantum dot composition of 100 parts by weight Benchmark, the content of coupling agent can be 0~5 parts by weight.

Further, inorganic filler is selected from least one of silica, titanium dioxide, aluminium oxide and zinc oxide.Into One step, on the basis of the quantum dot composition of 100 parts by weight, the content of inorganic filler can be 0~10 parts by weight.

Matrix resin is acrylic resin in one of the embodiments, and monomer is selected from acrylate and acrylic acid is different At least one of norbornene ester, additive include at least one of inorganic filler, coupling agent and photoinitiator.The embodiment Quantum dot composition is particularly suitable for application as photocuring glue, can be used for preparing the quantum such as quantum dot diaphragm, quantum dot optical filter Point luminescent device.

Matrix resin is organic silicon resin in one of the embodiments, and monomer is in styrene and ethyl acetate At least one, additive includes at least one of defoaming agent and inorganic filler.The quantum dot composition of the embodiment is special It is suitable as heat cure glue, can be used for preparing the quantum dots luminescent devices such as quantum dot diaphragm, quantum dot optical filter.

Matrix resin is acrylic resin in one of the embodiments, and monomer is selected from acrylate and acrylic acid is different At least one of norbornene ester, additive include at least one of levelling agent, photoinitiator and defoaming agent.The amount of the embodiment Son point composition is particularly suitable for application as quantum dot ink, can be used for preparing quantum dot optical filter, quanta point electroluminescent unit Equal quantum dots luminescent device.

Matrix resin, monomer, quantum dot, organic small molecule material and optional additive are mixed according to a certain ratio It is even, quantum dot composition of the invention can be obtained.

By the way that organic small molecule material is added, capture and utilization of the quantum dot to photon are improved, is not being added to realize Add the luminous intensity for improving quantum dot light emitting device on the basis of additional quantum dot, significantly reduces cost.

Above-mentioned quantum dot composition is preparing the application in quantum dot luminescent device.

Specifically, quantum dot light emitting device may include quantum dot diaphragm, quantum dot optical filter and electroluminescent device At least one of quantum dot coating.There do not had using the method that above-mentioned quantum dot composition prepares quantum dot luminescent device to be special Limitation can be the various conventional methods of this field.

Present invention will be further explained by specific examples below, but is not used in the limitation present invention.