Compositions of a mixture of (A) a polymerisable compound, which undergoes polymerisation 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 polymerisation 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 polymerising such a composition. A method for forming an OLED, including depositing a layer containing the polymerisable composition from solution and exposing the layer to heat or actinic radiation to induce polymerisation, is also disclosed.
本文描述了一种混合物的组成,该混合物包括(A)一种可在受热或光辐射作用下发生聚合的聚合物化合物,其具有以下一般式:其中Q是有机电荷传输片段,L是连接基团,X是在受热或光辐射作用下能够发生自由基或阴离子聚合的基团,m为0或1,n是大于等于2的整数;以及(B)一种
磷光材料。还描述了一种至少包含通过聚合这种组成物形成的发射层的有机发光二极管(OLED)器件。本文还公开了一种形成OLED的方法,包括从溶液中沉积含有可聚合的组成物的层,并将该层暴露于热或光辐射作用下以诱导聚合。