The present application provides a dioxin derivative, a preparation method thereof, an electron transport layer, an OLED device and a display panel. The dioxin derivative has a formula of
where X is O, S or NR; L represents a direct bond, or L is a substituted or unsubstituted C
6
-C
60
arylene, or L is a C
2
-C
60
heteroaryl including a first heteroatom; A has a formula of
Ar1 and Ar2 independently are substituted or unsubstituted aryl, phenyl, biphenyl, or hererocyclyl comprising a second heteroatom, B is O, S or Se, X1, X2 and X3 independently are C or N, and at least one of X1, X2 or X3 is N, R4, R5 and R6 independently are C
5
-C
30
aromatic or heteroaromatic group ring.
本申请提供了一种二恶英衍
生物,其制备方法,电子传输层,OLED器件和显示面板。该二恶英衍
生物的
化学式为其中X为O、S或NR;L代表直接键,或L为取代或未取代的C6-C60芳基,或L为包括第一杂原子的C2-C60杂芳基;A的
化学式为Ar1和Ar2独立地为取代或未取代的芳基、苯基、
联苯基或含有第二杂原子的杂环基,B为O、S或Se,X1、X2和X3独立地为C或N,且X1、X2或X3中至少有一个为N,R4、R5和R6独立地为C5-C30芳香或杂芳基环。