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发明公开
CN110791151A 用于喷墨打印有机发光层的墨水及其制备方法和应用 无效 - 驳回

用于喷墨打印有机发光层的墨水及其制备方法和应用
摘要：
本发明公开了一种用于喷墨打印有机发光层的墨水，其包括混合均匀的混合主体发光材料、掺杂磷光发光材料以及粘度调节剂；其中，混合主体发光材料包括载流子传输匹配的空穴传输材料和电子传输材料，并且，空穴传输材料及电子传输材料的三重态能级均比掺杂磷光发光材料的三重态能级高至少0.1eV。本发明还公开了上述墨水的制备方法以及其在有机发光二极管制作中的应用。本发明通过选定载流子传输匹配的空穴传输材料和电子传输材料混合作为混合主体发光材料、以及具有特定三重态能级性能的客体发光材料，并结合对粘度调节剂及有机溶剂的限定，通过简单工艺即获得了用于喷墨打印有机发光层的墨水，其制备方法简单，能够满足喷墨打印的制程要求。
摘要（英）：

The invention discloses ink for ink-jet printing of an organic light-emitting layer, wherein the ink is formed by uniformly mixing a mixed main body light-emitting material, a doped phosphorescent light-emitting material and a viscosity regulator, the mixed main body light-emitting material comprises a hole transport material and an electron transport material, the hole transport material and theelectron transport material are matched with carrier transport, and the triplet state energy levels of the hole transport material and the electron transport material are at least 0.1 eV higher than the triplet state energy level of the doped phosphorescent light-emitting material. The invention further discloses a preparation method of the ink and applications of the ink in manufacturing of organic light emitting diodes. According to the invention, the ink for ink-jet printing of an organic light-emitting layer is obtained through a simple process by mixing the hole transport material and theelectron transport material matched with carrier transport as the mixed main body light-emitting material, selecting the guest light-emitting material with the specific triplet state energy level performance and limiting the viscosity regulator and the organic solvent, so that the preparation method is simple, and the process requirement of ink-jet printing can be met.

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