处于溶剂笼中的三重态离子自由基对经电子反传，产生激发三重态二烯。
Excited triplet diene is formed via back electron transfer between radical ion pair within a solvent cage.
另外一导致二聚体裂解的可能途径：色氨酸残基激发三重态与二聚体间的电子转移光敏化二聚体裂解。
In addition, the excited triplet state of Trp can also transfer an electron to the dimer and make it splitted.
本发明的目的是提供具有高的激发三重态能级并完全约束了发磷光物质的三重态激发的发射层中的主体化合物。
The invention aims at providing host compounds for light-emitting layers which have high excited triplet energy levels and can completely confine phosphor triplet excitons.
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