WO2021196323A1 - 发光层材料及其制作方法、电致发光器件 - Google Patents

发光层材料及其制作方法、电致发光器件 Download PDF

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WO2021196323A1
WO2021196323A1 PCT/CN2020/086690 CN2020086690W WO2021196323A1 WO 2021196323 A1 WO2021196323 A1 WO 2021196323A1 CN 2020086690 W CN2020086690 W CN 2020086690W WO 2021196323 A1 WO2021196323 A1 WO 2021196323A1
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light
spiral
emitting layer
nanotube structure
layer material
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PCT/CN2020/086690
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French (fr)
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王亚楠
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Tcl华星光电技术有限公司
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Priority to US16/765,527 priority Critical patent/US20210309912A1/en
Publication of WO2021196323A1 publication Critical patent/WO2021196323A1/zh
Priority to US17/873,219 priority patent/US11753586B2/en

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/115—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00—Preparation of carboxylic acid amides
    • C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C269/06—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups by reactions not involving the formation of carbamate groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media

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  • the present invention relates to the field of display technology, in particular to a light-emitting layer material, a manufacturing method thereof, and an electroluminescent device.
  • OLED organic light-emitting diode
  • LCD liquid crystal display
  • the polarizer plays a very important role in its display effect. Due to the serious reflection of the metal of the device, the OLED device needs to use a polarizer to absorb the external light in order to maintain the light emission of the OLED itself. Contrast. Similar to LCD display, the addition of polarizer will lose at least half of the overall light extraction efficiency. If this part of the light energy loss can be improved and reduced, it will have a great contribution to the display life of the OLED device.
  • one of the objectives of the present invention is to provide a light-emitting layer material and a manufacturing method thereof, which can modulate the emitted light into circular polarization by using the chiral properties of the light-emitting layer material Compared with synthesizing light-emitting materials that directly emit circularly polarized light, this method is easier to achieve, and the material compatibility is high.
  • Another object of the present invention is to provide an electroluminescent device whose luminescent layer adopts the luminescent layer material.
  • the output light efficiency can be improved when combined with the circular polarizer. 40%-50%, thereby increasing the light-emitting efficiency of the device, and also improving the light-emitting life of the electroluminescent device itself.
  • the present invention provides a light-emitting layer material, which includes a spiral nanotube structure and light-emitting particles, and the light-emitting particles are uniformly distributed in the spiral nanotube structure.
  • the particle diameter of the spiral nanotube structure ranges from 20 nm to 40 nm; the particle diameter of the luminescent particles ranges from 1 nm to 100 nm.
  • the material of the spiral nanotube structure is a single chiral nanotube material.
  • the material of the luminescent particles includes at least one of quantum dot luminescent particles, lanthanide nanocrystals, and perovskite nanocrystals.
  • the light-emitting layer material further includes dimethylformamide.
  • the present invention also provides a method for manufacturing the luminescent layer material, which includes the steps:
  • the quantitative spiral nanotube structure is mixed with quantitative luminescent particles, and then added to the dimethylformamide solvent, heated to dissolve in a closed environment, and allowed to stand and cool to room temperature to form the uniform distribution of the luminescent particles. Inside the spiral nanotube structure.
  • the ratio of the spiral nanotube structure to the luminescent particles is (10-17):1; when the particle size of the luminescent particles When the range is 1nm-20nm and/or 40nm-100nm, the ratio of the spiral nanotube structure to the luminescent particles is (5-30):1.
  • the step of fabricating a spiral nanotube structure includes:
  • a quantitative target compound is mixed with a quantitative alcohol solvent, heated to boiling in a sealed environment, and then cooled to room temperature to form a spiral tubular structure.
  • the present invention also provides an electroluminescent device comprising a light-emitting layer; the material used for the light-emitting layer is the above-mentioned light-emitting layer material.
  • the electroluminescent device further includes a circular polarizer, and the circular polarizer is disposed on the light-emitting layer.
  • the technical effect of the present invention is that the present invention provides a light-emitting layer material and a method for making the same.
  • the emitted light can be modulated into circularly polarized light, compared to synthetic light-emitting materials that directly emit circularly polarized light. , This method is easier to achieve, and the material compatibility is high.
  • the present invention also provides an electroluminescent device whose luminescent layer adopts the luminescent layer material. By changing the polarization state of the electroluminescent device, the output light efficiency can be increased by 40%-50% when matched with a circular polarizer. Therefore, the light-emitting efficiency of the device is increased, and the light-emitting life of the electroluminescent device itself can also be improved.
  • FIG. 1 is a schematic diagram of the structure of the light-emitting layer material in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of the electroluminescent device described in the embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the structure of the circular polarizer in FIG. 2;
  • FIG. 4 is a schematic diagram of the structure of the linear polarizer in FIG. 2.
  • Luminescent layer materials 11. Spiral nanotube structure, 12. Luminous particles,
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more than two, unless otherwise specifically defined.
  • the present invention provides a light-emitting layer material 10, including a spiral nanotube structure 11 in a guest-host structure and light-emitting particles 12.
  • the guest-host structure is based on the spiral nanotube structure 11, and the light-emitting
  • the particles 12 are uniformly distributed in the spiral nanotube structure 11, especially in the tubular structure of the spiral nanotube structure 11.
  • the material of the spiral nanotube structure 11 has chiral properties, so that the light-emitting layer material 10 has chiral properties.
  • the chiral properties of the light-emitting layer material 10 can modulate the emitted light into circularly polarized light compared to synthetic For luminescent materials that directly emit circularly polarized light, this method is easier to achieve, and the material compatibility is high.
  • the particle diameter of the spiral nanotube structure 11 is in the range of 20 nm-40 nm; the particle diameter of the light-emitting particles 12 is in the range of 1 nm-100 nm.
  • the material of the spiral nanotube structure 11 is a single chiral nanotube material.
  • the chemical structural formula of the spiral nanotube structure 11 is:
  • the material of the light-emitting particles 12 includes quantum dot light-emitting particles, lanthanide nanocrystals or perovskite nanocrystals.
  • the light-emitting layer material 10 further includes dimethylformamide 13.
  • the present invention also provides a method for manufacturing the light-emitting layer material 10, which includes the steps:
  • the particle diameter of the spiral nanotube structure 11 ranges from 20 nm to 40 nm; the particle diameter of the light-emitting particles 12 ranges from 1 nm to 100 nm.
  • the proportion of the spiral nanotube structure 11 to the light-emitting particles 12 is (10-17):1;
  • the proportion of the spiral nanotube structure 11 to the luminescent particles 12 is (5-30):1.
  • the material of the spiral nanotube structure 11 is a single chiral nanotube material.
  • the chiral characteristics of the light-emitting layer material 10 can modulate its emitted light into circularly polarized light. Compared with synthesizing a light-emitting material that directly emits circularly polarized light, this method is easier to achieve, and the material High compatibility.
  • step S1 of making the spiral nanotube structure 11 of this embodiment in conjunction with formula (1) which includes the following steps:
  • the present invention also provides an electroluminescent device 20, which includes a stacked light emitting layer 21 and a circular polarizer 22; the circular polarizer 22 is provided on the light emitting layer 21; wherein, the The material used for the light-emitting layer 21 is the aforementioned light-emitting layer material 10.
  • inkjet printing or other fixed-point coating methods can be selected, and the film material is coated or molded into the pixel structure of the corresponding color according to different color combinations.
  • the external light 31 will exit 22 again through the circular polarizer 22 after being reflected. After the circular polarizer 22 is passed twice, the light energy of 22 is all absorbed. The change in the structure of the light-emitting layer 21 will not affect the blocking effect of the circular polarizer on the external light 31.
  • the circular polarizer 22 includes a ⁇ /4 wave plate 221 and a linear polarizer 222.
  • FIG. 3 is a schematic diagram of the structure of the ⁇ /4 wave plate 221
  • FIG. 4 is a schematic diagram of the structure of the linear polarizer 222.
  • the polarization state of the emitted light 32 of the device 20 itself needs to correspond to the polarization axis setting of the polarizer. Since both the external light 31 and the emitted light 32 belong to circularly polarized light, the arrangement of the linear polarizer 222 needs to ensure that all the light in the outgoing polarization state can pass through the linear polarizer 222.
  • the optical axis is configured with the transmission axis of the linear polarizer 222 as shown in FIG. 4 (indicated by a line in FIG. 4) and the transmission axis of the ⁇ /4 wave plate 221 as shown in FIG. 3)
  • the included angle is 45° in the counterclockwise direction, then the light emission of the electroluminescent device 20 is set to right-handed polarized light, and the hand of the spiral nanotube structure 11 constituting the light-emitting layer 21 is selected.
  • the sexual direction is right-handed.
  • the light emission of the electroluminescent device 20 is set to left-handed polarized light, and the chiral direction of the spiral nanotube structure 11 constituting the light-emitting layer 21 is selected as Left-handed.
  • the technical effect of the present invention is that the present invention provides a light-emitting layer material 10 and a method for making the same.
  • the emitted light can be modulated into circularly polarized light compared to synthetic direct-emitting circularly polarized light.
  • This method is easier to achieve, and the material compatibility is high.
  • the present invention also provides an electroluminescent device 20 whose luminescent layer 21 adopts the luminescent layer material 10.
  • the output light efficiency can be increased by 40% when combined with a circular polarizer. %-50%, thereby increasing the light-emitting efficiency of the device, and also improving the light-emitting life of the electroluminescent device 20 itself.

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Abstract

本发明提供一种发光层材料及其制作方法与电致发光器件。发光层材料包括螺旋纳米管结构以及发光粒子，发光粒子均匀分布于螺旋纳米管结构内。发光层材料的制作方法包括制作螺旋纳米管结构步骤以及制作宾主结构步骤，该方法更易达成且材料兼容性高。

Description

发光层材料及其制作方法、电致发光器件 技术领域
本发明涉及显示技术领域，尤其涉及一种发光层材料及其制作方法与电致发光器件。
背景技术
当下，有机发光二极管(OLED)器件因其显示效果佳，形态轻巧，可实现曲面显示等优势，使得其在显示行业中领先于液晶显示器(LCD)，成为高端市场的主要代表。但对应于OLED显示，其成本及显示寿命仍是亟待持续改进的方面。在OLED的器件结构中，除了发光部分，偏光片在其显示效果中扮演相当重要的角色，由于器件的金属反光严重，OLED器件需要用偏光片将外界的光吸收掉，以便维持OLED本身的发光对比度。同LCD显示类似，偏光片的加入，整体的出光效率会至少损失一半以上。若能改善减少该部分的光能损失，则对OLED器件的显示寿命将会有很大的贡献。
因此，有必要提供一种发光层材料及其制作方法与电致发光器件，以克服现有技术中存在的问题。
技术问题
针对以上现有技术存在的缺点和不足之处，本发明的其中一个目的在于，提供一种发光层材料及其制作方法，通过利用发光层材料的手性特性可以将其出射光调制为圆偏振光相较于合成直接发射圆偏振光的发光材料，该方法更易达成，且材料兼容性高。
技术解决方案
本发明的另一个目的在于，提供一种电致发光器件，其发光层采用所述发光层材料，通过改变电致发光器件发光的偏振态，搭配圆偏光片的状态下，出射光效率可以提高40％-50％，进而增加器件的出光效率，也可以提升电致发光器件本身的发光寿命。
为实现上述目的，本发明提供一种发光层材料，包括螺旋纳米管结构以及发光粒子，所述发光粒子均匀分布于所述螺旋纳米管结构内。
进一步地，所述螺旋纳米管结构的粒径范围为20nm-40nm；所述发光粒子的粒径范围为1nm-100nm。
进一步地，所述螺旋纳米管结构的材质为单一手性纳米管材料。
进一步地，所述螺旋纳米管结构的化学结构式为：
Figure PCTCN2020086690-appb-000001
进一步地，所述发光粒子的材料包括量子点发光粒子、镧系纳米晶、钙钛矿纳米晶中的至少一种。
进一步地，所述发光层材料还包括二甲基甲酰胺。
本发明还提供一种发光层材料的制作方法，包括步骤：
制作螺旋纳米管结构并提供发光粒子；以及
将定量的所述螺旋纳米管结构与定量的发光粒子混合，再添加至二甲基甲酰胺溶剂中，在封闭环境中加热至溶解，静置冷却至室温，制作形成所述发光粒子均匀分布于所述螺旋纳米管结构内。
进一步地，当所述发光粒子的粒径范围为20nm-40nm时，所述螺旋纳米管结构与所述发光粒子的配比比重为(10-17)：1；当所述发光粒子的粒径范围为1nm-20nm和/或40nm-100nm时，所述螺旋纳米管结构与所述发光粒子的配比比重为(5-30)：1。
进一步地，所述制作螺旋纳米管结构步骤包括：
将N-叔丁氧羰基-L-谷氨酸、十八胺以及催化剂置于反应容器中获得第一反应液并充分反应，在所述第一反应液中加入四氢呋喃溶解剩余反应物提纯获得中间化合物；
将中间化合物、二氯甲烷以及三氟乙酸置于反应容器中获得第二反应液并充分反应，所述第二反应液用旋蒸仪去掉过量的溶剂，剩余物溶解于四氢夫喃后加入到碳酸氢钠水溶液中，得到的白色固体物质为目标化合物；
将所述目标化合物置于四氢夫喃中并进行重结晶纯化；以及
将定量的目标化合物与定量的酒精溶剂混合，在密封环境中加热至沸腾，再冷却至室温，形成螺旋状的管状结构。
本发明还提供一种电致发光器件，包括发光层；所述发光层所用材料为上述发光层材料。
进一步地，所述电致发光器件还包括圆偏光片，所述圆偏光片设于所述发光层上。
有益效果
本发明的技术效果在于，本发明提供一种发光层材料及其制作方法通过利用发光层材料的手性特性可以将其出射光调制为圆偏振光相较于合成直接发射圆偏振光的发光材料，该方法更易达成，且材料兼容性高。本发明还提供一种电致发光器件，其发光层采用所述发光层材料，通过改变电致发光器件发光的偏振态，搭配圆偏光片的状态下，出射光效率可以提高40％-50％，进而增加器件的出光效率，也可以提升电致发光器件本身的发光寿命。
附图说明
图1为本发明实施例中所述发光层材料的结构示意图；
图2为本发明实施例中所述的电致发光器件的结构示意图；
图3为图2中所述圆偏光片的结构示意图；
图4为图2中所述线偏光片的结构示意图。
部分组件标识如下：
10、发光层材料，11、螺旋纳米管结构，12、发光粒子，
13、二甲基甲酰胺，20、电致发光器件，21、发光层，
22、圆偏光片，221、λ/4波片，222、线偏光片，
31、外界光线，32、发射光。
本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳 动前提下所获得的所有其他实施例，都属于本发明保护的范围。
“由……制作”与“包含”同义。本文中所用的术语“包含”、“包括”、“具有”、“含有”或其任何其它变形，意在覆盖非排它性的包括。例如，包含所列要素的组合物、步骤、方法、制品或装置不必仅限于那些要素，而是可以包括未明确列出的其它要素或此种组合物、步骤、方法、制品或装置所固有的要素。
其中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
此外，还应注意的是，在一些可替代的实现方式中，本文中所描述的所有方法的步骤可不按顺序发生。例如，示出为连续的两个步骤可实际上大致同时执行，或者这两个步骤可有时以相反的顺序执行。
如图1所示，本发明提供一种发光层材料10，包括呈宾主结构的螺旋纳米管结构11以及发光粒子12，所述宾主结构为以所述螺旋纳米管结构11为主体，所述发光粒子12均匀分布于所述螺旋纳米管结构11内，尤其是所述螺旋纳米管结构11的管状结构内。
所述螺旋纳米管结构11的材质具有手性特性，使得所述发光层材料10具有手性特性，所述发光层材料10的手性特性可以将其出射光调制为圆偏振光相较于合成直接发射圆偏振光的发光材料，该方法更易达成，且材料兼容性高。
本实施例中，在所述发光层材料10中，所述螺旋纳米管结构11的粒径范围为20nm-40nm；所述发光粒子12的粒径范围为1nm-100nm。
本实施例中，所述螺旋纳米管结构11的材质为单一手性纳米管材料。
本实施例中，所述螺旋纳米管结构11的化学结构式为：
Figure PCTCN2020086690-appb-000002
本实施例中，所述发光粒子12的材料包括量子点发光粒子、镧系纳米晶或钙钛矿纳米晶。
本实施例中，所述发光层材料10还包括二甲基甲酰胺13。
本发明还提供一种发光层材料10的制作方法，包括步骤：
S1、制作螺旋纳米管结构11并提供发光粒子12；以及
S2、将定量的所述螺旋纳米管结构11与定量的发光粒子12混合，再添加至二甲基甲酰胺溶剂中，在封闭环境中加热至溶解，静置(约30min-60min)冷却至室温，制作形成所述发光粒子12均匀分布于所述螺旋纳米管结构11的管状空间内的宾主结构。
本实施例中，所述螺旋纳米管结构11的粒径范围为20nm-40nm；所述发光粒子12的粒径范围为1nm-100nm。
本实施例中，当所述发光粒子12的粒径范围为20nm-40nm时，所述螺旋纳米管结构11与所述发光粒子12的配比比重为(10-17)：1；当所述发光粒子12的粒径范围为1nm-20nm和/或40nm-100nm时，所述螺旋纳米管结构11与所述发光粒子12的配比比重为(5-30)：1。
本实施例中，所述螺旋纳米管结构11的材质为单一手性纳米管材料。
在发光层材料10的制作方法中，所述发光层材料10的手性特性可以将其出射光调制为圆偏振光相较于合成直接发射圆偏振光的发光材料，该方法更易达成，且材料兼容性高。
为了更加详细地解释本发明的所述制作螺旋纳米管结构11的制作方法，提供了其反应式大体如式(1)所示：
Figure PCTCN2020086690-appb-000003
下面结合式(1)详细解释本实施例的所述制作螺旋纳米管结构11步骤S1内容，其包括如下步骤：
S11、将N-叔丁氧羰基-L-谷氨酸、十八胺以及催化剂置于反应容器中获得第一反应液并充分反应，在所述第一反应液中加入四氢呋喃溶解剩余反应物提纯获得中间化合物；其中所述N-叔丁氧羰基-L-谷氨酸为谷氨酸提前用叔丁氧羰基做保护处理获得；在式(1)中，所述催化剂包括1-羟基苯并三唑(HOBt)、碳二亚胺(EDC)以及盐酸(HCl)，盐酸用于使中间化合物脱保护基，即脱除叔丁氧羰基；所述中间化合物的化学结构式为
Figure PCTCN2020086690-appb-000004
S12、将中间化合物(3.575g,4.77mmol)、二氯甲烷(CH 2Cl 2)(50mL) 以及三氟乙酸(CF 3COOH)(8mL)置于反应容器中获得第二反应液，并在室温下混合搅拌小时3左右进行充分反应，所述第二反应液用旋蒸仪去掉过量的溶剂，剩余物溶解于四氢夫喃(THF)后加入到碳酸氢钠(NaHCO 3)水溶液中，得到的白色固体物质为目标化合物；在式(1)中，所述目标化合物的化学结构式为所述螺旋纳米管结构11的化学结构式：
Figure PCTCN2020086690-appb-000005
S13、将所述目标化合物置于四氢夫喃中并进行重结晶纯化；以及
S14、将定量的目标化合物与定量的酒精溶剂混合，在密封环境中加热至沸腾，即75℃，时间为3分钟，再冷却至室温，冷却速率为10℃/分钟，形成螺旋状的管状结构。
如图2所示，本发明还提供一种电致发光器件20，包括层叠设置的发光层21以及圆偏光片22；所述圆偏光片22设于所述发光层21上；其中，所述发光层21所用材料为上述发光层材料10。
在制作所述发光层21时，可以选用喷墨打印或其它定点涂布的方式进行，按照不同的颜色搭配，将膜层材料涂布或成型于对应颜色的像素结构中。
如图2所示，根据所述电致发光器件20工作原理，外界光线31会在反射后再次经由所述圆偏光片22出射22，经过2次所述圆偏光片22后，22光能全部被吸收。所述发光层21结构变更不会影响圆偏光片对外界光线31的阻隔效果。
所述圆偏光片22包括λ/4波片221以及线偏光片222。图3为所述λ/4波片221的结构示意图，图4为所述线偏光片222的结构示意图，为保证所述电致发光器件20本身的出射光效率达到最高，所述电致发光器件20本身的发射光32的偏振状态需要与偏光片的偏光轴设置相对应。因外界光线31和发射光32都属于圆偏振光，所述线偏光片222的设置需要保证出射偏振态的光可 以全部通过所述线偏光片222。举例说明，若光轴配置如图4所示的所述线偏光片222透光轴(图4中用线段表示)与如图3所示所述λ/4波片221的透光轴(图3中用线段表示)的夹角为逆时针方向45°，则所述电致发光器件20的发光设置为右旋偏振光，选取构成所述发光层21的所述螺旋纳米管结构11的手性方向为右旋。若光轴配置的夹角为逆时针方向135°，则所述电致发光器件20的发光设置为左旋偏振光，选取构成所述发光层21的所述螺旋纳米管结构11的手性方向为左旋。
本发明的技术效果在于，本发明提供一种发光层材料10及其制作方法通过利用发光层材料10的手性特性可以将其出射光调制为圆偏振光相较于合成直接发射圆偏振光的发光材料，该方法更易达成，且材料兼容性高。本发明还提供一种电致发光器件20，其发光层21采用所述发光层材料10，通过改变电致发光器件20发光的偏振态，搭配圆偏光片的状态下，出射光效率可以提高40％-50％，进而增加器件的出光效率，也可以提升电致发光器件20本身的发光寿命。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种发光层材料，其中，包括螺旋纳米管结构以及发光粒子，所述发光粒子均匀分布于所述螺旋纳米管结构内。
  2. 根据权利要求1所述的发光层材料，其中，所述螺旋纳米管结构的粒径范围为20nm-40nm；所述发光粒子的粒径范围为1nm-100nm。
  3. 根据权利要求1所述的发光层材料，其中，所述螺旋纳米管结构的材质为单一手性纳米管材料。
  4. 根据权利要求3所述的发光层材料，其中，所述螺旋纳米管结构的化学结构式为：
    Figure PCTCN2020086690-appb-100001
  5. 根据权利要求1所述的发光层材料，其中，所述发光粒子的材料包括量子点发光粒子、镧系纳米晶、钙钛矿纳米晶中的至少一种。
  6. 一种发光层材料的制作方法，其中，包括步骤：
    制作螺旋纳米管结构并提供发光粒子；以及
    将定量的所述螺旋纳米管结构与定量的发光粒子混合，再添加至二甲基甲酰胺溶剂中，在封闭环境中加热至溶解，静置冷却至室温，制作形成所述发光粒子均匀分布于所述螺旋纳米管结构内。
  7. 根据权利要求7所述的发光层材料的制作方法，其中，
    当所述发光粒子的粒径范围为20nm-40nm时，所述螺旋纳米管结构与所述发光粒子的配比比重为(10-17)：1；
    当所述发光粒子的粒径范围为1nm-20nm和/或40nm-100nm时，所述螺旋纳米管结构与所述发光粒子的配比比重为(5-30)：1。
  8. 根据权利要求7所述的发光层材料的制作方法，其中，所述制作螺旋纳米管结构步骤包括：
    将N-叔丁氧羰基-L-谷氨酸、十八胺以及催化剂置于反应容器中获得第一反应液并充分反应，在所述第一反应液中加入四氢呋喃溶解剩余反应物提纯获得中间化合物；
    将中间化合物、二氯甲烷以及三氟乙酸置于反应容器中获得第二反应液并充分反应，所述第二反应液用旋蒸仪去掉过量的溶剂，剩余物溶解于四氢夫喃后加入到碳酸氢钠水溶液中，得到的白色固体物质为目标化合物；
    将所述目标化合物置于四氢夫喃中并进行重结晶纯化；以及
    将定量的目标化合物与定量的酒精溶剂混合，在密封环境中加热至沸腾，再冷却至室温，形成螺旋状的管状结构。
  9. 一种电致发光器件，其中，包括发光层；所述发光层所用材料为权利要求1所述的发光层材料。
  10. 根据权利要求9所述的电致发光器件，其中，还包括：
    圆偏光片，设于所述发光层上。
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