Compound, sensor, sensor embedded display panel, and electronic device
A compound that may be applied to a sensor to improve electrical properties thereof is represented by Chemical Formula 1: In Chemical Formula 1, each substituent is the same as defined in the detailed description.
1 . A compound represented by Chemical Formula 1:
wherein, in Chemical Formula 1,
X 1 and X 2 are different from each other and are each independently CR a R b , SiR c R d or NR e ,
R 2 to R 5 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, —NR f R g , or any combination thereof,
R a to R g are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof,
R a and R b are each independently present or are linked to each other to form a ring,
R c and R d are each independently present or are linked to each other to form a ring,
R f and R g are each independently present or are linked to each other to form a ring, and
R 1 and R 6 are each —NR f R g , wherein R f and R g are each a substituted or unsubstituted C6 to C20 aryl group, and R f and R g are linked to each other through a single bond, a substituted or unsubstituted C1 to C5 alkylene group, a substituted or unsubstituted C2 to C5 alkenylene group, a substituted or unsubstituted C6 to C20 arylene group, O, S, Se, Te, CR h R i , SiR j R k , or GeR l R m to form a ring, wherein R h to R m are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof.
2 . The compound of claim 1 , wherein
X 1 is CR a R b or SiR c R d , wherein R a to R d are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C20 aryl group, and
X 2 is NR e , wherein Re is a substituted or unsubstituted C6 to C20 aryl group.
3 . The compound of claim 1 , wherein the compound is represented by Chemical Formula 1A:
wherein, in Chemical Formula 1A,
R a and R b are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,
R e is a substituted or unsubstituted C6 to C20 aryl group, and
R 1 and R 6 are each one group of a set of groups listed in Group 1,
wherein, in Group 1,
Y 1 is O, S, Se, Te, CR h R i , SiR j R k or GeR l R m ,
R h to R q are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof,
n is an integer of 0 to 2, and
* is a linking point with Chemical Formula 1A.
4 . The compound of claim 1 , wherein
a glass transition temperature of the compound is about 170° C. to about 400° C., and
a LUMO energy level of the compound is about 2.00 eV to about 2.80 eV.
5 . A sensor, the sensor comprising:
a first electrode and a second electrode;
a photoelectric conversion layer between the first electrode and the second electrode; and
a buffer layer between the first electrode and the photoelectric conversion layer,
wherein the buffer layer includes a compound represented by Chemical Formula
wherein, in Chemical Formula 1,
X 1 and X 2 are different from each other and are each CR a R b , SiR c R d , or NR e ,
R 2 to R 5 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, —NR f R g , or any combination thereof,
R a to R g are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof,
R a and R b are each independently present or are linked to each other to form a ring,
R c and R d are each independently present or are linked to each other to form a ring,
R f and R g are each independently present or are linked to each other to form a ring, and
R 1 and R 6 are each —NR f R g , wherein R f and R g are each a substituted or unsubstituted C6 to C20 aryl group, R f and R e are linked to each other through a single bond, a substituted or unsubstituted C1 to C5 alkylene group, a substituted or unsubstituted C2 to C5 alkenylene group, a substituted or unsubstituted C6 to C20 arylene group, O, S, Se, Te, CR h R i , SiR j R k , or GeR l R m to form a ring, wherein R h to R m are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof.
6 . The sensor of claim 5 , wherein
X 1 is CR a R b or SiR c R d , wherein R a to R d are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C20 aryl group, and
X 2 is NR e , wherein R e is a substituted or unsubstituted C6 to C20 aryl group.
7 . The sensor of claim 5 , wherein the compound is represented by Chemical Formula 1A:
wherein, in Chemical Formula 1A,
R a and R b are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,
R e is a substituted or unsubstituted C6 to C20 aryl group, and
R 1 and R 6 are each one group of a set of groups listed in Group 1,
wherein, in Group 1,
Y 1 is O, S, Se, Te, CR h R i , SiR j R k , or GeR l R m ,
R h to R q are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof,
n is an integer of 0 to 2, and
* is a linking point with Chemical Formula 1A.
8 . The sensor of claim 5 , further comprising:
a semiconductor substrate,
wherein the semiconductor substrate includes circuitry that is electrically connected to the first electrode or the second electrode.
9 . A sensor-embedded display panel, comprising:
a substrate;
a light emitting element on the substrate; and
a sensor on the substrate, the sensor being in parallel with the light emitting element along an in-plane direction of the substrate such that the sensor and the light emitting element at least partially overlap in the in-plane direction,
wherein the sensor includes
a first electrode and a second electrode,
a photoelectric conversion layer between the first electrode and the second electrode, and
a buffer layer between the first electrode and the photoelectric conversion layer,
wherein the buffer layer includes a compound represented by Chemical Formula 1:
wherein, in Chemical Formula 1,
X 1 and X 2 are different from each other and are each independently CR a R b , SiR c R d , or NR e ,
R 1 to R 6 are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, —NR f R g , or any combination thereof,
at least one of R 1 or R 6 is a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, —NR f R g , or any combination thereof,
R a to R g are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof,
R a and R b are each independently present or are linked to each other to form a ring,
R c and R d are each independently present or are linked to each other to form a ring, and
R f and R g are each independently present or are linked to each other to form a ring.
10 . The sensor-embedded display panel of claim 9 , wherein
the light emitting element comprises a plurality of light emitting elements, the plurality of light emitting elements including a first light emitting element, a second light emitting element, and a third light emitting element, the plurality of light emitting elements arranged in parallel along the in-plane direction of the substrate, the plurality of light emitting elements configured to emit light of different wavelength spectra in relation to each other, and
the sensor is configured to absorb light generated from at least one of the first light emitting element, the second light emitting element, or the third light emitting element and then reflected by a recognition target to convert the absorbed light into an electrical signal.
11 . The sensor-embedded display panel of claim 9 , wherein R 1 and R 6 are each —NR f R g , wherein R f and R e are each a substituted or unsubstituted C6 to C20 aryl group, R f and R g are linked to each other through a single bond, a substituted or unsubstituted C1 to C5 alkylene group, a substituted or unsubstituted C2 to C5 alkenylene group, a substituted or unsubstituted C6 to C20 arylene group, O, S, Se, Te, CR h R i , SiR j R k , or GeR l R m to form a ring, wherein R h to R m are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof.
12 . The sensor-embedded display panel of claim 9 , wherein
X 1 is CR a R b or SiR c R d , wherein R a to R d are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C20 aryl group, and
X 2 is NR e , wherein R e is a substituted or unsubstituted C6 to C20 aryl group.
13 . The sensor-embedded display panel of claim 9 , wherein the compound is represented by Chemical Formula 1A:
wherein, in Chemical Formula 1A,
R a and R b are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,
R e is a substituted or unsubstituted C6 to C20 aryl group, and
R 1 and R 6 are each one group of a set of groups listed in Group 1,
wherein, in Group 1,
Y 1 is O, S, Se, Te, CR h R i , SiR j R k or GeR l R m ,
R h to R q are each independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a halogen, a cyano group, or any combination thereof,
n is an integer of 0 to 2, and
* is a linking point with Chemical Formula 1A.
14 . The sensor-embedded display panel of claim 9 , wherein
the light emitting element comprises
a third electrode and a fourth electrode, and
a light emitting layer between the third electrode and the fourth electrode, and
the second electrode of the sensor and the fourth electrode of the light emitting element are a common electrode to which a common voltage is applied.
15 . The sensor-embedded display panel of claim 14 , further comprising a first common auxiliary layer that is a single piece of material that extends continuously between the third electrode and the light emitting layer and between the first electrode and the buffer layer.
16 . The sensor-embedded display panel of claim 15 , wherein the first common auxiliary layer is in contact with the buffer layer in the sensor and the light emitting layer in the light emitting element, respectively.
17 . The sensor-embedded display panel of claim 15 , wherein the buffer layer is thinner than the first common auxiliary layer.
18 . The sensor-embedded display panel of claim 14 , further comprising a second common auxiliary layer that is a single piece of material that extends continuously between the fourth electrode and the light emitting layer and between the second electrode and the photoelectric conversion layer.
19 . The sensor-embedded display panel of claim 14 , wherein
the light emitting layer comprises an organic light emitter, a quantum dot, a perovskite, or any combination thereof, and
the photoelectric conversion layer comprises an organic photoelectric conversion material.
20 . The sensor-embedded display panel of claim 9 , wherein
The light emitting element comprises a plurality of light emitting elements, the plurality of light emitting elements including a first light emitting element, a second light emitting element, and a third light emitting element, the plurality of light emitting elements each configured to emit light in any one of a red wavelength spectrum, a green wavelength spectrum, or a blue wavelength spectrum, and
the photoelectric conversion layer is configured to absorb light having a same wavelength spectrum as light emitted from at least one of the first light emitting element, the second light emitting element, or the third light emitting element.
21 . The sensor-embedded display panel of claim 9 , wherein
the sensor-embedded display panel comprises
a display area configured to display a color, and
a non-display area excluding the display area, and
the sensor is in the non-display area.
22 . The sensor-embedded display panel of claim 21 , wherein
the light emitting element comprises a plurality of light emitting elements, the plurality of light emitting elements including a first light emitting element, a second light emitting element, and a third light emitting element, the plurality of light emitting elements each configured to emit light of any one of a red wavelength spectrum, a green wavelength spectrum, or a blue wavelength spectrum,
the display area comprises
a plurality of first subpixels configured to display red, the plurality of first subpixels including the first light emitting element,
a plurality of second subpixels configured to display green, the plurality of second subpixels including the second light emitting element, and
a plurality of third subpixels configured to display blue, the plurality of third subpixels including the third light emitting element, and
the sensor is between at least two selected from the plurality of first subpixels, the plurality of second subpixels, or the plurality of third subpixels.
23 . An electronic device comprising the sensor of claim 5 .
24 . An electronic device comprising the sensor-embedded display panel of claim 9 .