WO2019037318A1 - 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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WO2019037318A1
WO2019037318A1 PCT/CN2017/113034 CN2017113034W WO2019037318A1 WO 2019037318 A1 WO2019037318 A1 WO 2019037318A1 CN 2017113034 W CN2017113034 W CN 2017113034W WO 2019037318 A1 WO2019037318 A1 WO 2019037318A1
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perovskite
ink
inkjet printing
solvent
mass percentage
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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 US15/579,932 priority Critical patent/US20190062581A1/en
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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
    • 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
    • C09D11/30—Inkjet printing inks
    • C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes

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  • the present invention relates to the field of display technologies, and in particular, to a perovskite ink for inkjet printing and a preparation method thereof.
  • the perovskite material with ABX 3 as its basic chemical formula is named after the calcium titanate (CaTiO 3 ) compound first found in perovskite.
  • the perovskite structure is characterized in that the X octahedron centered on the B site cation is co-topped and embedded in the tetragonal body with the A site ion as the apex.
  • the cations at positions A and B can be occupied by a single ion or a plurality of ions. According to the types of cations at the A and B sites and their ionic radii, perovskite materials with different microstructure characteristics and ever-changing physical properties can be constructed.
  • Organic/Inorganic Hybrid Perovskite (OIHP) materials were first reported by Weber (Naturforsch. 1978, 33b, 1443). It can be seen as an alternating stack of organic and inorganic moieties.
  • the organic-inorganic hybrid perovskite material is a solution processable semiconductor material, which has the characteristics of low cost, high carrier mobility, large light absorption coefficient, and the like, and has excellent performance in the field of solar cells in recent years.
  • organic-inorganic hybrid perovskite materials have luminescent properties such as adjustable wavelength of light emission and narrow emission spectrum, and have great potential in the fields of electroluminescence, laser, display and the like.
  • the organic-inorganic hybrid perovskite material has the advantages of organic and inorganic semiconductor materials, is suitable for solution processing of organic semiconductor materials and large-area film-forming preparation process, and has the defects of low defect density and high luminous efficiency of conventional inorganic luminescent materials. Good color purity and other advantages.
  • the organic-inorganic hybrid perovskite material can be dispersed in a solvent to prepare an ink, and the perovskite light-emitting film can be prepared by printing, pad printing, spin coating or the like.
  • the inkjet printing technology can accurately deposit the organic-inorganic hybrid perovskite material in a set position, and deposit a precision pixel film, which is beneficial for large-scale color perovskite light-emitting diodes (PeLED). Manufacturing, reducing costs.
  • inkjet printing equipment and printing processes have certain requirements on ink. In order to make ink suitable for inkjet printing technology, the solvent composition, viscosity and surface tension of ink are generally adjusted, so it is suitable for inkjet printing equipment and The perovskite inks of the printing process conditions need to be improved.
  • the object of the present invention is to provide a method for preparing a perovskite ink for inkjet printing, which has a simple process, and the prepared perovskite ink for inkjet printing has certain viscosity, surface tension and volatility, and can satisfy inkjet printing. Process requirements, to achieve the inkjet printing method of the perovskite luminescent layer.
  • Another object of the present invention is to provide a perovskite ink for inkjet printing which can meet the requirements of the ink jet printing process and realize the ink jet printing method of the perovskite light emitting layer.
  • the present invention provides a method for preparing a perovskite ink for inkjet printing, comprising:
  • a viscosity modifier and a surface tension modifier are added to the perovskite solution, and after stirring, a perovskite ink for inkjet printing is obtained.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one high boiling point solvent.
  • the alcohol compound includes one or more of a monohydric alcohol and a polyhydric alcohol
  • the high boiling point solvent includes one or more of an ether compound and an ester compound having a boiling point of more than 200 degrees Celsius.
  • the surface tension adjusting agent includes one or more of imidazole and a derivative thereof, phenol, and hydroquinone; and the viscosity modifier includes one or more of an alcohol, an ether, an ester, a phenol, and an amine.
  • the viscosity modifier includes one or more of an alcohol, an ether, an ester, a phenol, and an amine.
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; and the mass percentage of the surface tension modifier It is 0.1% to 5%; the mass percentage of the viscosity modifier is 0.1% to 5%.
  • the present invention also provides a perovskite ink for inkjet printing comprising: a solvent and a perovskite material dispersed in a solvent, a viscosity modifier, and a surface tension modifier.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one high boiling point solvent.
  • the alcohol compound includes one or more of a monohydric alcohol and a polyhydric alcohol
  • the high boiling point solvent includes one or more of an ether compound and an ester compound having a boiling point of more than 200 degrees Celsius.
  • the surface tension adjusting agent includes one or more of imidazole and a derivative thereof, phenol, and hydroquinone; and the viscosity modifier includes one or more of an alcohol, an ether, an ester, a phenol, and an amine.
  • the viscosity modifier includes one or more of an alcohol, an ether, an ester, a phenol, and an amine.
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; and the mass percentage of the surface tension modifier It is 0.1% to 5%; the mass percentage of the viscosity modifier is 0.1% to 5%.
  • the invention also provides a preparation method of a perovskite ink for inkjet printing, comprising:
  • the perovskite material is an organic-inorganic doped perovskite material
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one high boiling point solvent;
  • the alcohol compound comprises one or more of a monohydric alcohol and a polyhydric alcohol
  • the high boiling point solvent includes one or more of an ether compound and an ester compound, and the boiling point of the high boiling solvent is greater than 200 degrees Celsius;
  • the surface tension adjusting agent comprises one or more of imidazole and a derivative thereof, phenol, and hydroquinone; and the viscosity adjusting agent comprises one of an alcohol, an ether, an ester, a phenol, and an amine. Or a variety;
  • the mass percentage of the perovskite material is 0.1% to 30%; the mass percentage of the solvent is 10% to 99.99%; and the surface tension modifier The mass percentage is from 0.1% to 5%; the mass percentage of the viscosity modifier is from 0.1% to 5%.
  • the invention has the advantages that the preparation method of the perovskite ink for inkjet printing of the invention is simple in process, and the prepared perovskite ink for inkjet printing has certain viscosity, surface tension and volatility, and can satisfy inkjet printing. Process requirements, to achieve the inkjet printing method of the perovskite luminescent layer.
  • the perovskite ink for inkjet printing of the present invention is prepared by the above method, and can satisfy the process requirements of inkjet printing, and realize an inkjet printing method of a perovskite light-emitting layer.
  • FIG. 1 is a flow chart showing a method of preparing a perovskite ink for inkjet printing of the present invention.
  • the present invention provides a method for preparing a perovskite ink for inkjet printing, comprising the following steps:
  • Step S1 providing a perovskite material and a solvent, dispersing the perovskite material in a solvent to obtain a perovskite solution.
  • the perovskite material is an organic-inorganic doped perovskite material
  • the perovskite material has a quantum dot size to have better luminescent properties.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one high boiling point solvent.
  • the solvent is used to disperse the perovskite material and is used to adjust the physical properties of the subsequently produced perovskite ink system for inkjet printing to meet the needs of inkjet printing.
  • the alcohol compound includes one or more of a monohydric alcohol and a polyhydric alcohol.
  • the high boiling point solvent includes one or more of an ether compound and an ester compound, and the boiling point of the high boiling solvent is greater than 200 degrees Celsius, which is favorable for improving the subsequently produced perovskite ink for inkjet printing.
  • the boiling point ensures that the ink does not dry too quickly during the inkjet printing process, improving the stability of the inkjet printing process.
  • Step S2 adding a viscosity adjusting agent and a surface tension adjusting agent to the perovskite solution under stirring, and stirring uniformly to obtain a perovskite ink for inkjet printing.
  • the surface tension adjusting agent includes one or more of imidazole and a derivative thereof, phenol, and hydroquinone.
  • the viscosity modifier includes one or more of an alcohol, an ether, an ester, a phenol, and an amine.
  • the surface tension adjusting agent and the viscosity adjusting agent are respectively used to adjust the surface tension and viscosity of the perovskite ink system for inkjet printing to meet the demand for inkjet printing.
  • the method for preparing a perovskite ink for inkjet printing of the present invention may further include: adding a co-solvent and a surfactant to the perovskite ink for inkjet printing to further adjust calcium and titanium for inkjet printing.
  • the surface tension of the mineral ink may further include: adding a co-solvent and a surfactant to the perovskite ink for inkjet printing to further adjust calcium and titanium for inkjet printing.
  • 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 agent is from 0.1% to 5%; the mass percentage of the viscosity modifier is from 0.1% to 5%.
  • the mass percentage of the solvent is from 60% to 99.7%.
  • the preparation method of the perovskite ink for inkjet printing of the invention has simple process, and the obtained perovskite ink for inkjet printing has certain viscosity, surface tension and volatility, can meet the requirements of the inkjet printing process, and realize the calcium and titanium.
  • the inkjet printing method of the mineral luminescent layer has certain viscosity, surface tension and volatility, can meet the requirements of the inkjet printing process, and realize the calcium and titanium.
  • the present invention also provides a perovskite ink for inkjet printing, comprising: a solvent and a perovskite material dispersed in a solvent, a viscosity modifier and a surface tension adjustment Agent.
  • the perovskite material is an organic-inorganic doped perovskite material
  • X chlor, bro , or I.
  • the perovskite material has a quantum dot size to have better luminescent properties.
  • the solvent includes at least one alkane or aromatic hydrocarbon compound, at least one alcohol compound, and at least one high boiling point solvent.
  • the solvent is used to disperse the perovskite material while regulating the physical properties of the perovskite ink system for inkjet printing to meet the needs of inkjet printing.
  • the alcohol compound includes one or more of a monohydric alcohol and a polyhydric alcohol.
  • the high boiling point solvent includes one or more of an ether compound and an ester compound, and the boiling point of the high boiling solvent is greater than 200 degrees Celsius, which is favorable for increasing the boiling point of the perovskite ink for inkjet printing, and ensuring The ink does not dry out too quickly during inkjet printing, improving the stability of the inkjet printing process.
  • the surface tension adjusting agent includes one or more of imidazole and a derivative thereof, phenol, and hydroquinone.
  • the surface tension adjusting agent and the viscosity adjusting agent are respectively used to adjust the surface tension and viscosity of the perovskite ink system for inkjet printing to meet the demand for inkjet printing.
  • the perovskite ink for inkjet printing of the present invention may further comprise a co-solvent and a surfactant to further adjust the surface tension of the perovskite ink for inkjet printing.
  • 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 agent is from 0.1% to 5%; the mass percentage of the viscosity modifier is from 0.1% to 5%.
  • the mass percentage of the solvent is from 60% to 99.7%.
  • the perovskite ink for inkjet printing of the present invention has a certain viscosity, surface tension and volatility, It can meet the process requirements of inkjet printing and realize the inkjet printing method of perovskite luminescent layer.
  • the present invention provides a perovskite ink for inkjet printing and a preparation method thereof.
  • the preparation method of the perovskite ink for inkjet printing of the invention has simple process, and the obtained perovskite ink for inkjet printing has certain viscosity, surface tension and volatility, can meet the requirements of the inkjet printing process, and realize the calcium and titanium.
  • the perovskite ink for inkjet printing of the present invention is prepared by the above method, and can satisfy the process requirements of inkjet printing, and realize an inkjet printing method of a perovskite light-emitting layer.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

一种喷墨打印用钙钛矿墨水的制备方法，包括：提供钙钛矿材料与溶剂，将钙钛矿材料分散于溶剂中，得到钙钛矿溶液；在搅拌作用下，向所述钙钛矿溶液中加入黏度调节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。制得的墨水具有一定黏度、表面张力和挥发性能，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。

Description

喷墨打印用钙钛矿墨水及其制备方法 技术领域
本发明涉及显示技术领域，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
以ABX3为基本化学式的钙钛矿材料以最早发现于钙钛矿石中的钛酸钙(CaTiO3)化合物而得名。钙钛矿结构的特征是以B位阳离子为中心的X八面体共顶连接，并嵌在以A位离子为顶点的四方体中。A、B位阳离子既可由单一离子也可由多种离子占据，根据A、B位阳离子的种类及其离子半径的不同，可以构筑出微结构特征各异、物理性能千变万化的钙钛矿材料。
有机-无机杂化钙钛矿(Organic/Inorganic Hybrid Perovskite,OIHP)材料的结构和物理性质最早由Weber(Naturforsch.1978,33b,1443)报道。它可看成是有机基团和无机部分的交替堆叠。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，有机-无机杂化钙钛矿材料具有出光波长可调、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。
有机-无机杂化钙钛矿材料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有机-无机杂化钙钛矿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。
发明内容
本发明的目的在于提供一种喷墨打印用钙钛矿墨水的制备方法，制程简单，制得的喷墨打印用钙钛矿墨水具有一定黏度、表面张力和挥发性能，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。
本发明的目的还在于提供一种喷墨打印用钙钛矿墨水，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。
为实现上述目的，本发明提供一种喷墨打印用钙钛矿墨水的制备方法，包括：
提供钙钛矿材料与溶剂，将钙钛矿材料分散于溶剂中，得到钙钛矿溶液；
在搅拌作用下，向所述钙钛矿溶液中加入黏度调节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。
所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I；
所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂。
所述醇类化合物包括一元醇与多元醇中的一种或多种；
所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于200摄氏度。
所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种；所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种。
所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。
本发明还提供一种喷墨打印用钙钛矿墨水，包括：溶剂及分散于溶剂中的钙钛矿材料、黏度调节剂和表面张力调节剂。
所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I；
所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂。
所述醇类化合物包括一元醇与多元醇中的一种或多种；
所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于200摄氏度。
所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种；所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种。
所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。
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：
提供钙钛矿材料与溶剂，将钙钛矿材料分散于溶剂中，得到钙钛矿溶液；
在搅拌作用下，向所述钙钛矿溶液中加入黏度调节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；
其中，所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I；
所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂；
其中，所述醇类化合物包括一元醇与多元醇中的一种或多种；
所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于200摄氏度；
其中，所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种；所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种；
其中，所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。
本发明的有益效果：本发明的喷墨打印用钙钛矿墨水的制备方法制程简单，制得的喷墨打印用钙钛矿墨水具有一定黏度、表面张力和挥发性能，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。本发明的喷墨打印用钙钛矿墨水采用上述方法制备得到，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为本发明的喷墨打印用钙钛矿墨水的制备方法的流程图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明提供一种喷墨打印用钙钛矿墨水的制备方法，包括如下步骤：
步骤S1、提供钙钛矿材料与溶剂，将钙钛矿材料分散于溶剂中，得到钙钛矿溶液。
具体的，所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝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。
优选的，所述钙钛矿材料具有量子点尺寸，以具有更好的发光性能。
具体的，所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂。所述溶剂用于分散钙钛矿材料，同时用于调节后续制得的喷墨打印用钙钛矿墨水体系的物理性质，使其满足喷墨打印的需求。
具体的，所述醇类化合物包括一元醇与多元醇中的一种或多种。
具体的，所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于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。
步骤S2、在搅拌作用下，向所述钙钛矿溶液中加入黏度调节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，所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种。
具体的，所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种。
具体的，所述表面张力调节剂与黏度调节剂分别用于调节喷墨打印用钙钛矿墨水体系的表面张力与黏度，使其满足喷墨打印的需求。
具体的，本发明的喷墨打印用钙钛矿墨水的制备方法还可以包括：在所述喷墨打印用钙钛矿墨水中加入共溶剂与表面活性剂，以进一步调节喷墨打印用钙钛矿墨水的表面张力。
具体的，所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调 节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。优选的，所述溶剂的质量百分比为60％～99.7％。
本发明的喷墨打印用钙钛矿墨水的制备方法制程简单，制得的喷墨打印用钙钛矿墨水具有一定黏度、表面张力和挥发性能，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。
基于上述喷墨打印用钙钛矿墨水的制备方法，本发明还提供一种喷墨打印用钙钛矿墨水，包括：溶剂及分散于溶剂中的钙钛矿材料、黏度调节剂和表面张力调节剂。
具体的，所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I。具体的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。
优选的，所述钙钛矿材料具有量子点尺寸，以具有更好的发光性能。
具体的，所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂。所述溶剂用于分散钙钛矿材料，同时用于调节喷墨打印用钙钛矿墨水体系的物理性质，使其满足喷墨打印的需求。
具体的，所述醇类化合物包括一元醇与多元醇中的一种或多种。
具体的，所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于200摄氏度，有利于提高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。
具体的，所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种。
具体的，所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种。
具体的，所述表面张力调节剂与黏度调节剂分别用于调节喷墨打印用钙钛矿墨水体系的表面张力与黏度，使其满足喷墨打印的需求。
具体的，本发明的喷墨打印用钙钛矿墨水还可以包括共溶剂与表面活性剂，以进一步调节喷墨打印用钙钛矿墨水的表面张力。
具体的，本发明的喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。优选的，所述溶剂的质量百分比为60％～99.7％。
本发明的喷墨打印用钙钛矿墨水具有一定黏度、表面张力和挥发性能， 能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。
综上所述，本发明提供一种喷墨打印用钙钛矿墨水及其制备方法。本发明的喷墨打印用钙钛矿墨水的制备方法制程简单，制得的喷墨打印用钙钛矿墨水具有一定黏度、表面张力和挥发性能，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。本发明的喷墨打印用钙钛矿墨水采用上述方法制备得到，能够满足喷墨打印的制程要求，实现钙钛矿发光层的喷墨打印方式。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (11)

  1. 一种喷墨打印用钙钛矿墨水的制备方法，包括：
    提供钙钛矿材料与溶剂，将钙钛矿材料分散于溶剂中，得到钙钛矿溶液；
    在搅拌作用下，向所述钙钛矿溶液中加入黏度调节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。
  2. 如权利要求1所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I；
    所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂。
  3. 如权利要求2所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述醇类化合物包括一元醇与多元醇中的一种或多种；
    所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于200摄氏度。
  4. 如权利要求1所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种；所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种。
  5. 如权利要求1所述的喷墨打印用钙钛矿墨水的制备方法，其中，所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。
  6. 一种喷墨打印用钙钛矿墨水，包括：溶剂及分散于溶剂中的钙钛矿材料、黏度调节剂和表面张力调节剂。
  7. 如权利要求6所述的喷墨打印用钙钛矿墨水，其中，所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I；
    所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂。
  8. 如权利要求7所述的喷墨打印用钙钛矿墨水，其中，所述醇类化合物包括一元醇与多元醇中的一种或多种；
    所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述 高沸点溶剂的沸点大于200摄氏度。
  9. 如权利要求6所述的喷墨打印用钙钛矿墨水，其中，所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种；所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种。
  10. 如权利要求6所述的喷墨打印用钙钛矿墨水，其中，所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。
  11. 一种喷墨打印用钙钛矿墨水的制备方法，包括：
    提供钙钛矿材料与溶剂，将钙钛矿材料分散于溶剂中，得到钙钛矿溶液；
    在搅拌作用下，向所述钙钛矿溶液中加入黏度调节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；
    其中，所述钙钛矿材料为有机-无机掺杂钙钛矿材料，所述有机-无机掺杂钙钛矿材料的结构通式为CH3NH3PbX3，其中，X＝Cl、Br、或I；
    所述溶剂包括至少一种烷烃或者芳香烃化合物、至少一种醇类化合物、及至少一种高沸点溶剂；
    其中，所述醇类化合物包括一元醇与多元醇中的一种或多种；
    所述高沸点溶剂包括醚类化合物与酯类化合物中的一种或多种，所述高沸点溶剂的沸点大于200摄氏度；
    其中，所述表面张力调节剂包括咪唑及其衍生物、苯酚、及对苯二酚中的一种或多种；所述黏度调节剂包括醇、醚、酯、酚、及胺中的一种或多种；
    其中，所述喷墨打印用钙钛矿墨水中，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％；所述表面张力调节剂的质量百分比为0.1％～5％；所述黏度调节剂的质量百分比为0.1％～5％。
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CN111244315A (zh) * 2020-01-21 2020-06-05 深圳市华星光电半导体显示技术有限公司 一种钙钛矿发光器件及显示面板的制备方法
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