WO2020047915A1 - 喷墨打印用钙钛矿墨水及其制备方法 - Google Patents

喷墨打印用钙钛矿墨水及其制备方法 Download PDF

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WO2020047915A1
WO2020047915A1 PCT/CN2018/107494 CN2018107494W WO2020047915A1 WO 2020047915 A1 WO2020047915 A1 WO 2020047915A1 CN 2018107494 W CN2018107494 W CN 2018107494W WO 2020047915 A1 WO2020047915 A1 WO 2020047915A1
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perovskite
ink
solvent
inkjet printing
mass percentage
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PCT/CN2018/107494
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English (en)
French (fr)
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张育楠
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深圳市华星光电半导体显示技术有限公司
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Priority to US16/301,852 priority Critical patent/US20210222020A1/en
Publication of WO2020047915A1 publication Critical patent/WO2020047915A1/zh

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    • 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
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/32—Inkjet printing inks characterised by colouring agents
    • C09D11/322—Pigment inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/32—Inkjet printing inks characterised by colouring agents
    • C09D11/328—Inkjet printing inks characterised by colouring agents characterised by dyes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/36—Inkjet printing inks based on non-aqueous solvents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/52—Electrically conductive inks
    • 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
    • C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
    • C09K2211/10—Non-macromolecular compounds

Definitions

  • the invention relates to the technical field of liquid crystal panels, in particular to a perovskite ink for inkjet printing and a preparation method thereof.
  • Organic-inorganic hybrid perovskite material is a solution processable semiconductor material, which has the characteristics of low cost, high carrier mobility, and large light absorption coefficient. In recent years, it has performed very well in the field of solar cells. At the same time, perovskite materials have luminous characteristics such as adjustable wavelength and narrow emission spectrum, and have great potential in the fields of electroluminescence, lasers, and display. Organic-inorganic hybrid perovskite materials have the advantages of both organic and inorganic semiconductor materials, and are suitable for organic semiconductor material solution processing and large-area film formation processes. At the same time, they have the traditional inorganic light-emitting materials with low defect density, high luminous efficiency, Good color purity and other advantages.
  • the perovskite can be dispersed in a solvent to prepare an ink.
  • the perovskite light-emitting film can be prepared by printing, pad printing, spin coating and the like.
  • the inkjet printing technology can accurately deposit the quantum dot material at a set position according to the required amount, and deposit and form a precise pixel thin film, which is beneficial to the manufacture of large-sized color perovskite light-emitting diodes (PeLEDs) and reduces costs.
  • inkjet printing equipment and printing processes have certain requirements for inks.
  • the solvent components, viscosity, and surface tension of the ink are usually comprehensively adjusted, so they are suitable for inkjet printing equipment and The printing process conditions of the perovskite ink need to be improved.
  • the invention provides a perovskite ink for inkjet printing to solve the technical problem that the existing perovskite ink for inkjet printing is not suitable for inkjet printing.
  • a perovskite ink for inkjet printing includes a solvent, a perovskite material dispersed in the solvent, a surface tension modifier, and a viscosity modifier; wherein the perovskite ink further includes a polymer doped material, and Improve the film-forming property of the perovskite material; the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; the mass percentage of the viscosity modifier is 0.1% 5%; the mass percentage of the polymer doped material is 10% to 90%; the structural formula of the perovskite material is CH 3 NH 3 PbX 3 , where X is Cl, Br, or I.
  • the polymer doping material is a polyimide polymer or a polyethylene oxide polymer.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one auxiliary solvent having a boiling point greater than 200 degrees Celsius.
  • a perovskite ink for inkjet printing includes a solvent, a perovskite material dispersed in the solvent, a surface tension modifier, and a viscosity modifier; wherein the perovskite ink further includes a polymer doped material, and Improve the film-forming properties of perovskite materials.
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; the mass percentage of the viscosity modifier is 0.1% to 5%; the polymerization The mass percentage of the dopant material is 10% to 90%.
  • the polymer doping material is a polyimide polymer or a polyethylene oxide polymer.
  • the structure of the perovskite material is CH 3 NH 3 PbX 3 , where X is Cl, Br or I.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one auxiliary solvent having a boiling point greater than 200 degrees Celsius.
  • the invention also provides a method for preparing a perovskite ink for inkjet printing, including:
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; the mass percentage of the viscosity modifier is 0.1% to 5%; the polymerization The mass percentage of the dopant material is 10% to 90%.
  • the polymer doping material is a polyimide polymer or a polyethylene oxide polymer.
  • the structure of the perovskite material is CH 3 NH 3 PbX 3 , where X is Cl, Br or I.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one auxiliary solvent having a boiling point greater than 200 degrees Celsius.
  • Surface tension and viscosity modifiers are used to adjust the surface tension and viscosity of the perovskite ink to meet the needs of inkjet printing.
  • the appropriate polymer doped materials are introduced into the perovskite material without affecting the performance of the device. Under the premise of improving the film-forming property of the perovskite material, thereby improving the light-emitting performance of the existing perovskite light-emitting diode device.
  • FIG. 1 is a schematic flowchart of a method for preparing a perovskite ink for inkjet printing according to a specific embodiment of the present invention.
  • the present invention is aimed at technical problems that need to be improved, such as that the existing perovskite inks for inkjet printing are not suitable for inkjet printing technology, and that the solvent components, viscosity, and surface tension of the ink need to be improved.
  • the invention can solve the above problems.
  • a perovskite ink for inkjet printing includes a solvent, a perovskite material dispersed in the solvent, a surface tension modifier, and a viscosity modifier; wherein the perovskite ink further includes a polymer doped material, and Improve the film-forming properties of perovskite materials.
  • Surface tension and viscosity modifiers are used to adjust the surface tension and viscosity of perovskite inks to meet the needs of inkjet printing, while using polymer doped materials to improve perovskite inks without affecting device performance It can prevent the formation of pinholes during the film formation, thereby improving the light emitting performance of the existing perovskite light emitting diode devices.
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; the mass percentage of the viscosity modifier is 0.1% to 5%; the polymerization The mass percentage of the dopant material is 10% to 90%.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one auxiliary solvent having a boiling point greater than 200 degrees Celsius.
  • the boiling point of the auxiliary solvent is greater than 200 degrees Celsius, which is conducive to increasing the boiling point of the subsequently produced perovskite ink for inkjet printing, ensuring that the ink does not dry out too quickly during the inkjet printing process, and improving the stability of the inkjet printing process.
  • the alcohol compound is a monohydric alcohol or a polyhydric alcohol.
  • the auxiliary solvent is an ether compound or an ester compound.
  • the structural formula of the perovskite material is CH 3 NH 3 PbX 3 , where X is Cl, Br, or I.
  • the surface tension modifier is one or more of imidazole and its derivatives, phenol, and hydroquinone.
  • the viscosity modifier is one or more of alcohol, ether, ester, phenol, and amine.
  • the polymer doped material is polyimid polymer (Polyimid Polymer (PIP) or polyethylene oxide polymer (Poly ethylene Oxide, PEO).
  • PIP Polyimid Polymer
  • PEO polyethylene oxide polymer
  • the introduction of a suitable polymer doped material into the perovskite material can improve the film-forming property of the perovskite material without affecting the performance of the device, thereby improving the light emitting performance of the existing perovskite light-emitting diode device.
  • the present invention also provides a method for preparing a perovskite ink for inkjet printing. As shown in FIG. 1, the method for preparing a perovskite ink includes:
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; the mass percentage of the viscosity modifier is 0.1% to 5%; the polymerization The mass percentage of the dopant material is 10% to 90%.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one auxiliary solvent having a boiling point greater than 200 degrees Celsius.
  • the alcohol compound is a monohydric alcohol or a polyhydric alcohol.
  • the auxiliary solvent is an ether compound or an ester compound.
  • the structural formula of the perovskite material is CH 3 NH 3 PbX 3 , where X is Cl, Br, or I.
  • the surface tension modifier is one or more of imidazole and its derivatives, phenol, and hydroquinone.
  • the viscosity modifier is one or more of alcohol, ether, ester, phenol, and amine.
  • the polymer doped material is polyimid polymer (Polyimid Polymer (PIP) or polyethylene oxide polymer (Poly ethylene Oxide, PEO).
  • PIP Polyimid Polymer
  • PEO polyethylene oxide polymer
  • the beneficial effect of the present invention is that the surface tension and viscosity of the perovskite ink are used to adjust the surface tension and viscosity of the perovskite ink, so that it can meet the requirements of inkjet printing, and at the same time, introduce a suitable polymer doping into the perovskite material Materials, under the premise of not affecting the performance of the device, improve the film-forming properties of the perovskite material, thereby improving the light-emitting performance of the existing perovskite light-emitting diode devices.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

本发明提供一种喷墨打印用钙钛矿墨水，包括溶剂、分散于溶剂中的钙钛矿材料、表面张力调节剂以及黏度调剂剂；其中，所述钙钛矿墨水还包括聚合物掺杂材料，以提高钙钛矿材料的成膜性。

Description

喷墨打印用钙钛矿墨水及其制备方法 技术领域
本发明涉及液晶面板技术领域，尤其涉及一种喷墨打印用钙钛矿墨水及其制备方法。
 背景技术
有机-无机杂化钙钛矿材料是一种可溶液加工的半导体材料，具有低成本、载流子迁移率高、光吸收系数大等特点，近几年来在太阳能电池领域有非常优异的表现。与此同时，钙钛矿材料具有出波长可调、发射光谱窄等发光特性，在电致发光、激光、显示等领域中也有巨大的潜力。有机-无机杂化钙钛矿材料兼具有机和无机半导体材料的优势，适用于有机半导体材料溶液加工及大面积成膜制备工艺，同时还具备传统无机发光材料的缺陷密度低、发光效率高、色纯度好等优势。
钙钛矿可分散于溶剂中配制成墨水，具体可采用打印、移印、旋涂等方法制备钙钛矿发光薄膜。其中喷墨打印技术可以精确地按所需量将量子点材料沉积在设定的位置，沉积形成精密像素薄膜，有利于应用于大尺寸彩色钙钛矿发光二极管（PeLED）的制造，降低成本。
但是喷墨打印设备和打印工艺对墨水有一定要求，为了使墨水适合于喷墨打印技术，通常会对墨水的溶剂组分，粘度和表面张力等进行综合调节，因此适用于喷墨打印设备和打印工艺条件的钙钛矿墨水有待改善。
 技术问题
本发明提供一种喷墨打印用钙钛矿墨水，以解决现有的喷墨打印用钙钛矿墨水不适合于喷墨打印的技术问题。
 技术解决方案
一种喷墨打印用钙钛矿墨水，包括溶剂、分散于溶剂中的钙钛矿材料、表面张力调节剂以及黏度调剂剂；其中，所述钙钛矿墨水还包括聚合物掺杂材料，以提高钙钛矿材料的成膜性；所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%；所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。
优选的，所述聚合物掺杂材料为聚酰亚胺聚合物或聚环氧乙烷聚合物。
优选的，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
一种喷墨打印用钙钛矿墨水，包括溶剂、分散于溶剂中的钙钛矿材料、表面张力调节剂以及黏度调剂剂；其中，所述钙钛矿墨水还包括聚合物掺杂材料，以提高钙钛矿材料的成膜性。
优选的，所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%。
优选的，所述聚合物掺杂材料为聚酰亚胺聚合物或聚环氧乙烷聚合物。
优选的，所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。
优选的，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
本发明还提供一种喷墨打印用钙钛矿墨水的制备方法，包括：
S10、将钙钛矿材料以及聚合物掺杂材料分散于溶剂中，得到钙钛矿溶液；
S20、在搅拌作用下，向钙钛矿溶液中加入黏度调剂剂和表面张力调节剂，搅拌均匀后，获得喷墨打印用钙钛矿墨水。
优选的，所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%。
优选的，所述聚合物掺杂材料为聚酰亚胺聚合物或聚环氧乙烷聚合物。
优选的，所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。
优选的，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
 有益效果
利用表面张力调节剂以及黏度调剂剂调节钙钛矿墨水的表面张力和黏度，使其满足喷墨打印的需求，同时在钙钛矿材料中引入合适的聚合物掺杂材料，在不影响器件性能的前提下，提升钙钛矿材料的成膜性，进而提升现有钙钛矿发光二极管器件的发光表现。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明具体实施方式中喷墨打印用钙钛矿墨水的制备方法的流程示意图。
本发明的具体实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的喷墨打印用钙钛矿墨水不适合于喷墨打印技术，墨水的溶剂组分，粘度和表面张力等有待改善的技术问题，本发明可以解决上述问题。
一种喷墨打印用钙钛矿墨水，包括溶剂、分散于溶剂中的钙钛矿材料、表面张力调节剂以及黏度调剂剂；其中，所述钙钛矿墨水还包括聚合物掺杂材料，以提高钙钛矿材料的成膜性。
利用表面张力调节剂以及黏度调剂剂调节钙钛矿墨水的表面张力和黏度，使其满足喷墨打印的需求，同时利用聚合物掺杂材料在不影响器件性能的前提下，提高钙钛矿墨水的成膜性，从而防止成膜过程中形成针孔，进而提升现有钙钛矿发光二极管器件的发光表现。
具体的，所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%。
具体的，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。辅助溶剂的沸点大于200摄氏度，有利于提高后续制得的喷墨打印用钙钛矿墨水的沸点，保证喷墨打印过程中墨水不会太快干掉，提高喷墨打印制程的稳定性。
其中，所述醇类化合物为一元醇或多元醇。
其中，所述辅助溶剂为醚类或酯类化合物。
具体的，所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。通过对钙钛矿材料中卤素阴离子X的选择，能够实现不同发光光色的调节。
具体的，所述表面张力调节剂为咪唑及其衍生物、苯酚、对苯二酚中的一种或几种。
具体的，粘度调节剂为醇、醚、酯、酚、胺中的一种或几种。
具体的，所述聚合物掺杂材料为聚酰亚胺聚合物(Polyimid Polymer，PIP)或聚环氧乙烷聚合物(Poly ethylene Oxide，PEO)。在钙钛矿材料中引入合适的聚合物掺杂材料，在不影响器件性能的前提下，提升钙钛矿材料的成膜性，进而提升现有钙钛矿发光二极管器件的发光表现。
本发明还提供一种喷墨打印用钙钛矿墨水的制备方法，如图1所示，所述钙钛矿墨水的制备方法包括：
S10、将钙钛矿材料以及聚合物掺杂材料分散于溶剂中，得到钙钛矿溶液；
S20、在搅拌作用下，向钙钛矿溶液中加入黏度调剂剂和表面张力调节剂，搅拌均匀后，获得喷墨打印用钙钛矿墨水。
具体的，所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%。
具体的，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
其中，所述醇类化合物为一元醇或多元醇。
其中，所述辅助溶剂为醚类或酯类化合物。
具体的，所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。通过对钙钛矿材料中卤素阴离子X的选择，能够实现不同发光光色的调节。
具体的，所述表面张力调节剂为咪唑及其衍生物、苯酚、对苯二酚中的一种或几种。
具体的，粘度调节剂为醇、醚、酯、酚、胺中的一种或几种。
具体的，所述聚合物掺杂材料为聚酰亚胺聚合物(Polyimid Polymer，PIP)或聚环氧乙烷聚合物(Poly ethylene Oxide，PEO)。
本发明的有益效果为：利用表面张力调节剂以及黏度调剂剂调节钙钛矿墨水的表面张力和黏度，使其满足喷墨打印的需求，同时在钙钛矿材料中引入合适的聚合物掺杂材料，在不影响器件性能的前提下，提升钙钛矿材料的成膜性，进而提升现有钙钛矿发光二极管器件的发光表现。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (13)

  1. 一种喷墨打印用钙钛矿墨水，其中，所述钙钛矿墨水包括：
    溶剂；
    分散于溶剂中的钙钛矿材料；
    表面张力调节剂；以及
    黏度调剂剂；
    其中，所述钙钛矿墨水还包括聚合物掺杂材料，以提高钙钛矿材料的成膜性；所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%；所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。
  2. 根据权利要求1所述的喷墨打印用钙钛矿墨水，其中，所述聚合物掺杂材料为聚酰亚胺聚合物或聚环氧乙烷聚合物。
  3. 根据权利要求1所述的喷墨打印用钙钛矿墨水，其中，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
  4. 一种喷墨打印用钙钛矿墨水，其中，所述钙钛矿墨水包括：
    溶剂；
    分散于溶剂中的钙钛矿材料；
    表面张力调节剂；以及
    黏度调剂剂；
    其中，所述钙钛矿墨水还包括聚合物掺杂材料，以提高钙钛矿材料的成膜性。
  5. 根据权利要求4所述的喷墨打印用钙钛矿墨水，其中，所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%。
  6. 根据权利要求4所述的喷墨打印用钙钛矿墨水，其中，所述聚合物掺杂材料为聚酰亚胺聚合物或聚环氧乙烷聚合物。
  7. 根据权利要求4所述的喷墨打印用钙钛矿墨水，其中，所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。
  8. 根据权利要求4所述的喷墨打印用钙钛矿墨水，其中，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
  9. 一种喷墨打印用钙钛矿墨水的制备方法，其中，所述钙钛矿墨水的制备方法包括：
    S10、将钙钛矿材料以及聚合物掺杂材料分散于溶剂中，得到钙钛矿溶液；
    S20、在搅拌作用下，向钙钛矿溶液中加入黏度调剂剂和表面张力调节剂，搅拌均匀后，获得喷墨打印用钙钛矿墨水。
  10. 根据权利要求9所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述钙钛矿材料的质量百分比为0.1%～30%；所述溶剂的质量百分比为10%～99.99%；所述黏度调剂剂的质量百分比为0.1%～5%；所述聚合物掺杂材料的质量百分比为10%～90%。
  11. 根据权利要求9所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述聚合物掺杂材料为聚酰亚胺聚合物或聚环氧乙烷聚合物。
  12. 根据权利要求9所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述钙钛矿材料的结构通式为CH 3NH 3PbX 3，其中X为Cl、Br或I。
  13. 根据权利要求9所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述溶剂包括至少一种烷烃或是芳香烃化合物、至少一种醇类化合物以及至少一种沸点大于200摄氏度的辅助溶剂。
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