Compounds, liquid compositions including compounds, and electroluminescent devices
Provided is a compound represented by Chemical Formula 1 capable of manufacturing an EL device by inkjet printing. In Chemical Formula 1, n is an integer of greater than or equal to 3 and less than or equal to 10, X is a group represented by Chemical Formula 2 and a plurality of X's may be the same or different from each other, and Y is a group represented by Chemical Formula 3 and a plurality of Y's may be the same or different from each other.
1 . A compound represented by Chemical Formula 1:
wherein, in Chemical Formula 1,
n is an integer of greater than or equal to 3 and less than or equal to 10,
X is a group represented by Chemical Formula 2 and a plurality of X's are the same or different from each other, and
Y is a group represented by Chemical Formula 3 and a plurality of Y's are the same or different from each other,
wherein, in Chemical Formula 2,
R 1 , R 2 , and R 3 are each independently a hydrogen atom, a single bond, or an alkyl group having 1 to 10 carbon atoms and are the same or different and are optionally linked to each other to form a ring,
a and b are each independently an integer of greater than or equal to 2 and less than or equal to 10, and
c is greater than or equal to 1 and less than or equal to 6;
wherein, in Chemical Formula 3,
R 4 , R 5 , and R 6 are each independently a hydrogen atom, a single bond, or an alkyl group having 1 to 8 carbon atoms and are the same or different and are optionally linked to each other to form a ring,
d is greater than or equal to 1 and less than or equal to 5, and
e and f are each independently greater than or equal to 1 and less than or equal to 6.
2 . The compound of claim 1 , wherein the compound has a molecular weight of greater than or equal to about 3000 g/mole and less than or equal to about 10000 g/mole.
3 . A composition comprising
the compound of claim 1 , and
a low molecular weight compound having a molecular weight of less than about 2000 g/mole,
wherein a content of the low molecular weight compound is less than or equal to about 30 wt %.
4 . A composition comprising
the compound of claim 1 , and
a polymer compound having a molecular weight of greater than or equal to about 10000 g/mole,
wherein a content of the polymer compound is less than or equal to about 60 wt %.
5 . A composition comprising
the compound of claim 1 ,
a low molecular weight compound having a molecular weight of less than about 2000 g/mole, and
a polymer compound having a molecular weight of greater than or equal to about 10000 g/mole,
wherein a content of the low molecular weight compound is less than or equal to about 30 wt %, and
a content of the polymer compound is less than or equal to about 60 wt %.
6 . A liquid composition comprising
the compound of claim 1 , and
a solvent.
7 . A liquid composition comprising
the composition of claim 3 , and
a solvent.
8 . A liquid composition comprising
the composition of claim 4 , and
a solvent.
9 . A liquid composition comprising
the composition of claim 5 , and
a solvent.
10 . An electroluminescent device material, comprising
the compound of claim 1 , and
a solvent.
11 . An electroluminescent device material, comprising
the composition of claim 3 , and
a solvent.
12 . An electroluminescent device material, comprising
the composition of claim 4 , and
a solvent.
13 . An electroluminescent device material, comprising
the composition of claim 5 , and
a solvent.
14 . An electroluminescent device, comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode,
wherein at least one layer of the organic layer comprises the compound of claim 1 .
15 . The electroluminescent device of claim 14 , wherein the organic layer comprising the compound is a hole transport layer or a hole injection layer.
16 . The electroluminescent device of claim 14 , wherein the organic layer comprises a light emitting layer comprising semiconductor nanoparticles or an organometallic complex.
17 . An electroluminescent device, comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode,
wherein at least one layer of the organic layer comprises the composition of claim 3 .
18 . The electroluminescent device of claim 17 , wherein the organic layer comprising the composition is a hole transport layer or a hole injection layer.
19 . The electroluminescent device of claim 17 , wherein the organic layer comprises a light emitting layer comprising semiconductor nanoparticles or an organometallic complex.
20 . An electroluminescent device, comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode,
wherein at least one layer of the organic layer comprises the composition of claim 4 .
21 . The electroluminescent device of claim 20 , wherein the organic layer comprising the composition is a hole transport layer or a hole injection layer.
22 . The electroluminescent device of claim 20 , wherein the organic layer comprises a light emitting layer comprising semiconductor nanoparticles or an organometallic complex.
23 . An electroluminescent device, comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode,
wherein at least one layer of the organic layer comprises the composition of claim 5 .
24 . The electroluminescent device of claim 23 , wherein the organic layer comprising the composition is a hole transport layer or a hole injection layer.
25 . The electroluminescent device of claim 23 , wherein the organic layer comprises a light emitting layer comprising semiconductor nanoparticles or an organometallic complex.
26 . A method of manufacturing an electroluminescent device comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode, comprising
applying the liquid composition according to claim 6 by inkjet printing, and
drying the liquid composition to remove a solvent to form a hole transport layer.
27 . The method of claim 26 , which comprises
applying an ink for a light emitting layer comprising semiconductor nanoparticles and a solvent for a light emitting layer on the surface of the hole transport layer by a wet method, and
drying the ink for the light emitting layer to remove the solvent to form the light emitting layer.
28 . A method of manufacturing an electroluminescent device comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode, comprising
applying the liquid composition according to claim 7 by inkjet printing, and
drying the liquid composition to remove a solvent to form a hole transport layer.
29 . The method of claim 28 , which comprises
applying an ink for a light emitting layer comprising semiconductor nanoparticles and a solvent for a light emitting layer on the surface of the hole transport layer by a wet method, and
drying the ink for the light emitting layer to remove the solvent to form the light emitting layer.
30 . A method of manufacturing an electroluminescent device comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode, comprising
applying the liquid composition according to claim 8 by inkjet printing, and
drying the liquid composition to remove a solvent to form a hole transport layer.
31 . The method of claim 30 , which comprises
applying an ink for a light emitting layer comprising semiconductor nanoparticles and a solvent for a light emitting layer on the surface of the hole transport layer by a wet method, and
drying the ink for the light emitting layer to remove the solvent to form the light emitting layer.
32 . A method of manufacturing an electroluminescent device comprising
a first electrode and a second electrode, and
at least one organic layer between the first electrode and the second electrode, comprising
applying the liquid composition according to claim 9 by inkjet printing, and
drying the liquid composition to remove a solvent to form a hole transport layer.
33 . The method of claim 32 , which comprises
applying an ink for a light emitting layer comprising semiconductor nanoparticles and a solvent for a light emitting layer on the surface of the hole transport layer by a wet method, and
drying the ink for the light emitting layer to remove the solvent to form the light emitting layer.