申请人:BOE TECHNOLOGY GROUP CO., LTD.
公开号:US20220315540A1
公开(公告)日:2022-10-06
A light-emitting device includes a hole blocking layer including one or more of compounds shown in following formula (1)a and formula (1)b.
Z
1
to Z
11
are selected from H or R. R, R
1
and R
2
are each selected independently from deuterium, halogen, cyano, nitryl, amino, C
1
-C
40
alkyl, C
2
-C
40
alkenyl, C
2
-C
40
alkynyl, C
3
-C
40
cycloalkyl, C
3
-C
40
heterocycloalkyl, C
6
-C
60
aryl, C
5
-C
60
heteroaryl, C
1
-C
40
alkoxy, C
6
-C
60
aryloxy, C
3
-C
40
alkylsilyl, C
6
-C
60
arylsilyl, C
1
-C
40
alkylboron, C
6
-C
60
arylboron, C
6
-C
60
arylphosphinylene, C
6
-C
60
monoaryl or diaryl phosphino and C
6
-C
60
arylamino. R
3
is selected from heterocyclyl and fused heterocyclyl.