Electronic active material taking phenyl pyrimidine compound as skeleton, exciplex, organic electroluminescent device and application

The invention provides an electronic active material taking a phenyl pyrimidine compound as a skeleton, an exciplex, an organic electroluminescent device and application. The electron active material has a structure as shown in a general formula (I), wherein X1, X2 and X3 are respectively and independently selected from halogen, nitro, carbonyl, pyridyl, cyano, pyrazolyl, substituted or unsubstituted C6-C20 benzimidazolyl, oxadiazolyl, boron dioxide pentyl, aryl sulfuryl and aryl-phosphine oxide; m and n are 1 or 2; p is 0, 1 or 2; and q is 0 or 1. The electron active material with the structure shown in the formula (I) has good and balanced transmission properties so that when the electron active material is applied to a light-emitting layer, accumulation at a charge carrier interface can be promoted, the probability of RISC is increased, the current efficiency, external quantum efficiency, light-emitting efficiency and other properties of the organic electroluminescent device are effectively improved, and t