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    • 4. 发明申请
    • FORMULATION OF AN ORGANIC FUNCTIONAL MATERIAL
    • 有机功能材料的配方
    • WO2018077660A1
    • 2018-05-03
    • PCT/EP2017/076429
    • 2017-10-17
    • MERCK PATENT GMBH
    • BÉALLE, GaëlleLEONHARD, ChristophTSENG, Hsin-RongHAMBURGER, ManuelJATSCH, Anja
    • C09K11/06H01L51/00H01L51/56C09D11/36C09D11/033
    • The present invention relates to a formulation containing at least one organic functional material and at least four different organic solvents, a first organic solvent A, a second organic solvent B, a third organic solvent C, and a fourth organic solvent D, wherein the first organic solvent A comprises a group, which is capable of receiving or giving a hydrogen bonding, the second organic solvent B has a boiling point in the range from 50 to 350°C, the third organic solvent C has a boiling point in the range from 100 to 300°C, and the fourth organic solvent D has a boiling point in the range from 200 to 400°C, is present in an amount from 0,01 to1 vol.-% and has a viscosity of ≥15 mPas, the solubility of the at least one organic functional material in the second organic solvent B and in the fourth organic solvent D is ≥5 g/l, the boiling point of the third organic solvent C is at least 10°C lower than the boiling point of the second organic solvent B; and the boiling point of the fourth organic solvent D is at least 10°C higher than the boiling point of the second organic solvent B; as well as to electrolumines-cent devices prepared by using these formulations.
    • 本发明涉及含有至少一种有机功能材料和至少四种不同有机溶剂的配制剂,第一有机溶剂A,第二有机溶剂B,第三有机溶剂C和 第四有机溶剂D,其中第一有机溶剂A包含能够接受或提供氢键的基团,第二有机溶剂B的沸点为50-350℃,第三有机溶剂C 具有100-300℃的沸点,并且第四有机溶剂D具有200-400℃的沸点,并且具有0.01-1体积%的量,并且具有 粘度≥15mPas,至少一种有机功能材料在第二有机溶剂B和第四有机溶剂D中的溶解度≥5g/ l,第三有机溶剂C的沸点至少为10℃ ;低于第二有机溶剂B的沸点; 并且第四有机溶剂D的沸点比第二有机溶剂B的沸点高至少10℃; 以及通过使用这些配方制备的电致发光器件。