Organic light emitting device
An organic light emitting device including a light emitting layer, which comprises one or more of compounds represented by Formulae 1-1 to 1-3; and a compound represented by Formula 2.
1 . An organic light emitting device comprising:
an anode;
a cathode; and
an organic material layer comprising a light emitting layer provided between the anode and the cathode,
wherein the light emitting layer comprises one or more of compounds represented by the following Formulae 1-1 to 1-3; and a compound represented by the following Formula 2:
wherein, in Formulae 1-1 to 1-3 and 2,
L1 to L3 are the same as or different from each other, and are each independently a direct bond; or a substituted or unsubstituted arylene group,
D is deuterium, n11, n21, and n31 are each an integer from 0 to 6, n12, n13, n22, n32, and n33 are each an integer from 0 to 7, and n23 is an integer from 0 to 5,
Ar11, Ar21, and Ar22 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group,
Ar12, Ar13, Ar23, Ar24, Ar31, and Ar32 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group,
m11 and m21 are an integer from 0 to 4, m22 is an integer from 0 to 5, and substituents in the parenthesis are the same as or different from each other provided that when m11, m21, and m22 are each 2 or higher,
the compounds of Formulae 1-1 to 1-3 each have at least one or more deuteriums,
R1 to R3, R6, and R7 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a cyano group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted silyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heterocyclic group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthio group; a substituted or unsubstituted arylthio group; or a substituted or unsubstituted amine group, or a group represented by the following Formula 2-A or 2-B, or are bonded to an adjacent substituent to form a substituted or unsubstituted ring,
r1 and r2 are an integer from 0 to 4, r3 is an integer from 0 to 3, r6 and r7 are an integer from 0 to 5, and substituents in the parenthesis are the same as or different from each other provided that when r1 to r3, r6, and r7 are each 2 or higher,
wherein, in Formulae 2-A and 2-B,
* is a bonding site,
T11 to T19 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a cyano group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted silyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heterocyclic group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthio group; a substituted or unsubstituted arylthio group; or a substituted or unsubstituted amine group, or are bonded to an adjacent substituent to form a substituted or unsubstituted ring,
at least one of T17 to T19 is a substituted or unsubstituted aryl group, and at least one of the remaining T17 to T19 is a substituted or unsubstituted alkyl group,
A11 to A14 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a cyano group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted silyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aryl group; a substituted or unsubstituted heterocyclic group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthio group; a substituted or unsubstituted arylthio group; or a substituted or unsubstituted amine group, or are bonded to an adjacent substituent to form a substituted or unsubstituted aliphatic hydrocarbon ring,
L11 is a direct bond; or a substituted or unsubstituted arylene group,
p1 is 0 or 1, and
Y1 is C or Si,
wherein one or more of R1 to R3, R6, and R7 are a group represented by Formula 2-A or 2-B, or
wherein two of adjacent R1's, two of adjacent R2's, two of adjacent R3's, two of adjacent R6's, or two of adjacent R7's are bonded to each other to form a substituted or unsubstituted aliphatic hydrocarbon ring comprising 5 or more carbon atoms.
2 . The organic light emitting device of claim 1 , wherein the compounds of Formulae 1-1 to 1-3 are deuterated by 30% or more.
3 . The organic light emitting device of claim 1 , wherein n11, n21, and n31 are 1 or higher.
4 . The organic light emitting device of claim 1 , wherein the light emitting layer comprises two types of compounds each represented by any one of Formulae 1-1 to 1-3 as hosts.
5 . The organic light emitting device of claim 1 , wherein the compound of Formula 1-1 is represented by any one selected from the following Formulae 101 to 104:
wherein, in Formulae 101 to 104, Ar11 to Ar13, D, n11 to n13, m11, and L1 are the same as defined in Formula 1-1.
6 . The organic light emitting device of claim 1 , wherein the compound of Formula 1-2 is represented by any one selected from the following Formulae 111 to 114:
wherein, in Formulae 111 to 114, D, n21 to n23, Ar21 to Ar24, m21, m22, and L2 are the same as defined in Formula 1-2.
7 . The organic light emitting device of claim 1 , wherein the compound of Formula 1-3 is represented by any one selected from the following Formulae 121 to 124:
wherein, in Formulae 121 to 124, Ar31, Ar32, D, n31 to n33, and L3 are the same as defined in Formula 1-3.
8 . The organic light emitting device of claim 1 , wherein the compound of Formula 2 comprises at least one deuterium.
9 . The organic light emitting device of claim 1 , wherein the compound represented by Formula 1-1 is any one selected from the following compounds:
10 . The organic light emitting device of claim 1 , wherein the compound represented by Formula 1-2 is any one selected from the following compounds:
11 . The organic light emitting device of claim 1 , wherein the compound represented by Formula 1-3 is any one selected from the following compounds:
12 . An organic light emitting device comprising:
an anode;
a cathode; and
an organic material layer comprising a light emitting layer provided between the anode and the cathode,
wherein the light emitting layer comprises one or more of compounds represented by the following Formulae 1-1 to 1-3; and a compound any one selected from the following Group 1:
wherein, in Formulae 1-1 to 1-3,
L1 to L3 are the same as or different from each other, and are each independently a direct bond; or a substituted or unsubstituted arylene group,
D is deuterium, n11, n21, and n31 are each an integer from 0 to 6, n12, n13, n22, n32, and n33 are each an integer from 0 to 7, and n23 is an integer from 0 to 5,
Ar11, Ar21, and Ar22 are the same as or different from each other, and are each independently a substituted or unsubstituted aryl group,
Ar12, Ar13, Ar23, Ar24, Ar31, and Ar32 are the same as or different from each other, and are each independently hydrogen; deuterium; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroaryl group,
m11 and m21 are an integer from 0 to 4, m22 is an integer from 0 to 5, and substituents in the parenthesis are the same as or different from each other provided that when m11, m21, and m22 are each 2 or higher,
the compounds of Formulae 1-1 to 1-3 each have at least one or more deuteriums, and
[Group 1]