Compositions of a mixture of (A) a polymerizable compound, which undergoes polymerization on exposure to heat or to actinic radiation, having the general formula
wherein Q is an organic charge transporting fragment, L is a linker group, X is a group capable of undergoing free radical or anionic polymerization on exposure to heat or actinic radiation, m is 0 or 1, and n is an integer having a value of 2 or more; and (B) a phosphorescent material are described, as is an organic light-emitting diode (OLED) device comprising at least one emissive layer that has been formed by polymerizing such a composition. A method for forming an OLED, including depositing a layer containing the polymerizable composition from solution and exposing the layer to heat or actinic radiation to induce polymerization, is also disclosed.
本文描述了一种混合物的组成,该混合物由(A)一种聚合性化合物和(B)一种
磷光材料组成。其中,化合物(A)在暴露于热或光辐射时会发生聚合反应,其通式为Q为有机电荷传输基团,L为连接基团,X为在暴露于热或光辐射时能够发生自由基或阴离子聚合反应的基团,m为0或1,n为大于等于2的整数。此外,本文还描述了一种包括至少一个由这样的混合物聚合形成的发光层的有机发光二极管(OLED)器件。本文还公开了一种制备OLED的方法,包括从溶液中沉积含有聚合性化合物的层,并将该层暴露于热或光辐射以诱导聚合反应的步骤。