# US 2025/0098534 A1 · Light receiving element, electronic device, and polycyclic compound for light receiving element

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- Number: US 2025/0098534 A1
- Document ID: US20250098534A1
- Status: Published application
- Kind: A1
- Application number: 18/746,822
- Filed: 2024-06-18
- Published: 2025-03-20
- Earliest claimed: 2023-09-12
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: HYEJIN JUNG; Hwa Sook RYU; SEOKGYU YOON
- Web page: https://patentgrep.com/patent/US20250098534A1

## CPC

- H10K 85/6576: {comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene}
- C07D 495/04: Ortho-condensed systems
- H10K 30/30: comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains
- H10K 30/40: comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
- H10K 39/32: Organic image sensors
- H10K 85/621: {Aromatic anhydride or imide compounds, e.g. perylene tetra-carboxylic dianhydride or perylene tetracarboxylic di-imide}
- H10K 85/653: {comprising only oxygen as heteroatom}
- H10K 85/654: {comprising only nitrogen as heteroatom (H10K85/652 takes precedence)}
- H10K 85/655: {comprising only sulfur as heteroatom}
- H10K 85/657: {Polycyclic condensed heteroaromatic hydrocarbons}
- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- H10K 65/00: Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element and at least one organic radiation-sensitive element, e.g. organic opto-couplers (organic image sensors integrated with organic light-emitting devices H10K39/34; OLED displays integrated with photosensors H10K59/13)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

## Abstract

A light receiving element includes a first electrode, a second electrode on the first electrode, and a light receiving layer between the first electrode and the second electrode and including a polycyclic compound represented by Formula 1.

## Claims

### Claim 1

A light receiving element comprising:
a first electrode;
a second electrode facing the first electrode; and
a light receiving layer between the first electrode and the second electrode and comprising a first compound represented by Formula 1:
wherein, in Formula 1,
n1 and n2 are each independently an integer of 0 to 10,
Ar1 and Ar2 are each independently a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms, and
Q1 and Q2 are each independently represented by any one selected from among Formulas Q-1 to Q-7:
in Formulas Q-1 to Q-7,
n101, n102, and n104 being each independently an integer of 0 to 3,
n103 and n110 being each independently an integer of 0 to 2,
n108, n109, and n111 being each independently an integer of 0 to 5,
X1 to X3 being each independently oxygen, sulfur, selenium, or tellurium,
R101 to R103 being each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms,
R104 to R112 being each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, and
-* being a site linked to Formula 1.

### Claim 2 (depends on 1)

The light receiving element of claim 1, wherein, in Formula 1,
when Q1 and Q2 are each represented by Formula Q-1, then Q1 and Q2 are each independently represented by any one selected from among Formulas R-11 to R-19:
in Formulas R-11 to R-19,
-* being a site linked to Formula 1.

### Claim 3 (depends on 1)

The light receiving element of claim 1, wherein, in Formula 1,
when Q1 and Q2 are each represented by Formula Q-2, then Q1 and Q2 are each independently represented by any one selected from among Formulas R-21 to R-24:
in Formulas R-21 to R-24,
-* being a site linked to Formula 1.

### Claim 4 (depends on 1)

The light receiving element of claim 1, wherein, in Formula 1,
when Q1 and Q2 are each represented by Formula Q-3, then Q1 and Q2 are each independently represented by any one selected from among Formulas R-31 to R-34:
in Formulas R-31 to R-34,
-* being a site linked to Formula 1.

### Claim 5 (depends on 1)

The light receiving element of claim 1, wherein, in Formula 1,
when Q1 and Q2 are each represented by Formula Q-4, then Q1 and Q2 are each independently represented by Formula R-41 or Formula R-42:
in Formulas R-41 and R-42,
-* being a site linked to Formula 1.

### Claim 6 (depends on 1)

The light receiving element of claim 1, wherein, in Formula 1,
when Q1 and Q2 are each represented by Formula Q-5, then Q1 and Q2 are each independently represented by Formula R-51 or Formula R-52:
in Formulas R-51 and R-52,
-* being a site linked to Formula 1.

### Claim 7 (depends on 1)

The light receiving element of claim 1, wherein, in Formula 1,
when Q1 and Q2 are each represented by Formula Q-6, then Q1 and Q2 are each independently represented by Formula R-61, and
when Q1 and Q2 are each represented by Formula Q-7, then Q1 and Q2 are each independently represented by Formula R-71:
in Formulas R-61 and R-71,
-* being a site linked to Formula 1.

### Claim 8 (depends on 1)

The light receiving element of claim 1, wherein the first compound represented by Formula 1 is represented by any one selected from among Formulas A-1 to A-5:
in Formulas A-1 to A-5,
X4 and X5 being each independently oxygen, sulfur, selenium, or tellurium, and
Q1 and Q2 each being the same as defined in Formula 1.

### Claim 9 (depends on 1)

The light receiving element of claim 1, wherein the first compound represented by Formula 1 is represented by any one selected from among Formulas 1-1 to 1-6:
in Formulas 1-1 to 1-6,
Q1 and Q2 each being the same as defined in Formula 1.

### Claim 10 (depends on 1)

The light receiving element of claim 1, wherein the light receiving layer further comprises a second compound represented by Formula 2:
in Formula 2,
Cy1 is being substituted or unsubstituted aromatic hydrocarbon ring having 6 to 30 carbon atoms,
A1 and A2 being each independently oxygen or NR113, and
R113 being hydrogen, deuterium, a halogen, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms.

### Claim 11 (depends on 10)

The light receiving element of claim 10, wherein the light receiving layer comprises a light absorption layer comprising the first compound and a photoelectric conversion layer comprising the second compound.

### Claim 12 (depends on 11)

The light receiving element of claim 11, wherein the photoelectric conversion layer is on the light absorption layer.

### Claim 13 (depends on 11)

The light receiving element of claim 11, wherein an interface is defined between the light absorption layer and the photoelectric conversion layer.

### Claim 14 (depends on 1)

The light receiving element of claim 1, further comprising:
a hole control layer between the first electrode and the light receiving layer; and
an electron control layer between the light receiving layer and the second electrode.

### Claim 15 (depends on 10)

The light receiving element of claim 10, wherein the first compound represented by Formula 1 is represented by any one selected from among compounds of Compound Group 1, and the second compound represented by Formula 2 is represented by any one selected from among compounds of Compound Group 2:

### Claim 16

An electronic device comprising:
a base layer; and
a display element layer comprising a light emitting element and a light receiving element,
wherein:
the light emitting element comprises:
a first light emitting electrode on the base layer;
an emission layer on the first light emitting electrode; and
a second light emitting electrode on the emission layer,
the light receiving element comprises:
a first light receiving electrode on the base layer;
a light receiving layer on the first light receiving electrode; and
a second light receiving electrode on the light receiving layer, and
the light receiving layer comprises a first compound represented by Formula 1:
wherein, in Formula 1,
n1 and n2 are each independently an integer of 0 to 10,
Ar1 and Ar2 are each independently a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms, and
Q1 and Q2 are each independently represented by any one selected from among Formulas Q-1 to Q-7:
in Formulas Q-1 to Q-7,
n101, n102, and n104 being each independently an integer of 0 to 3,
n103 and n110 being each independently an integer of 0 to 2,
n108, n109, and n111 being each independently an integer of 0 to 5,
X1 to X3 being each independently oxygen, sulfur, selenium, or tellurium,
R101 to R103 being each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms,
R104 to R112 being each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, and
-* being a site linked to Formula 1.

### Claim 17

A polycyclic compound represented by Formula 1:
wherein, in Formula 1,
n1 and n2 are each independently an integer of 0 to 10,
Ar1 and Ar2 are each independently a substituted or unsubstituted arylene group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroarylene group having 2 to 60 carbon atoms, and
Q1 and Q2 are each independently represented by any one selected from among Formulas Q-1 to Q-7:
in Formulas Q-1 to Q-7,
n101, n102, and n104 being each independently an integer of 0 to 3,
n103 and n110 being each independently an integer of 0 to 2,
n108, n109, and n111 being each independently an integer of 0 to 5,
X1 to X3 being each independently oxygen, sulfur, selenium, or tellurium,
R101 to R103 being each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms,
R104 to R112 being each independently hydrogen, deuterium, a halogen, a cyano group, a nitro group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, and
-* being a site linked to Formula 1.

### Claim 18 (depends on 17)

The polycyclic compound of claim 17, wherein the polycyclic compound represented by Formula 1 is represented by any one selected from among Formulas A-1 to A-5:
in Formulas A-1 to A-5,
X4 and X5 being each independently oxygen, sulfur, selenium, or tellurium, and
Q1 and Q2 each being the same as defined in Formula 1.

### Claim 19 (depends on 17)

The polycyclic compound of claim 17, wherein the polycyclic compound represented by Formula 1 is represented by any one selected from among Formulas 1-1 to 1-6:
in Formulas 1-1 to 1-6,
Q1 and Q2 each being the same as defined in Formula 1.

### Claim 20 (depends on 17)

The polycyclic compound of claim 17, wherein the polycyclic compound represented by Formula 1 is represented by any one selected from among compounds of Compound Group 1: