IP Library › Granted Patent US 12,213,375
Granted Patent B2
US 12,213,375 · App. 18/206,551 · Granted Jan 28, 2025

Photoelectric conversion film, photoelectric conversion element and electronic device

Inventors: Yoshiaki Obana (Kanagawa, JP); Yuki Negishi (Kanagawa, JP); Yuta Hasegawa (Kanagawa, JP); Ichiro Takemura (Kanagawa, JP); Osamu Enoki (Kanagawa, JP); Hideaki Mogi (Kanagawa, JP); Nobuyuki Matsuzawa (Tokyo, JP)
Assignee: Sony Semiconductor Solutions Corporation
H10K85/311C07D471/04C07F5/022C09B47/00C09B48/00C09B67/0033H10K30/211H10K39/32H10K85/654H10K85/6572H10K30/20H10K39/00Y02E10/549
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Quick Facts
Patent No.
US 12,213,375
App. No.
18/206,551
Granted
Jan 28, 2025
Kind
B2
Abstract

There is provided a photoelectric conversion film including a quinacridone derivative represented by the following General formula and a subphthalocyanine derivative represented by the following General formula.

Claims (18)

1. A photoelectric conversion element comprising:

a photoelectric conversion film;

a pair of electrodes that are disposed at both sides of the photoelectric conversion film, which is interposed therebetween; and

a hole blocking layer disposed between the photoelectric conversion film and one of the electrodes,

wherein a difference between an ionization potential of the hole blocking layer and a work function of the one of the electrodes is greater than or equal to 2.3 eV,

wherein the hole blocking layer includes a compound represented by General formula (5):

wherein in General formula (5), R 50 is selected from the group consisting of hydrogen, a halogen, a hydroxy group, an alkoxy group, a cyano group, a nitro group, a silylalkyl group, a silylalkoxy group, an arylsilyl group, a thioalkyl group, a thioaryl group, a sulfonyl group, an arylsulfonyl group, an alkylsulfonyl group, an amino group, an alkylamino group, an arylamino group, an acyl group, an acylamino group, an acyloxy group, a carboxy group, a carboxamido group, a carboalkoxy group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heteroaryl group, and

wherein Ar 5 to Ar 8 each represent the substituted or unsubstituted heteroaryl group.

2. The photoelectric conversion element according to claim 1 , wherein at least one of the Ar 5 to Ar 8 and R 50 is an electron attracting group.

3. The photoelectric conversion element according to claim 2 , wherein the electron attracting group is selected from the group consisting of the halogen, the cyano group, the nitro group, the sulfonyl group, the arylsulfonyl group, the alkylsulfonyl group, the acyl group, the acylamino group, the acyloxy group, an imide group, the carboxy group, the carboxamido group, the carboalkoxy group, a halogenated alkyl group, and a halogenated aryl group.

4. The photoelectric conversion element according to claim 1 , wherein the General formula (5) is any of the following structural formulas:

5. The photoelectric conversion element according to claim 1 , wherein the hole blocking layer has a thickness of greater than or equal to approximately 5 nm and less than or equal to approximately 20 nm.

6. The photoelectric conversion element according to claim 1 , wherein the one of the electrodes is formed of one of indium tin oxide, indium zinc oxide, and graphene.

7. The photoelectric conversion element according to claim 6 , wherein the one of the electrodes is formed of indium tin oxide.

8. The photoelectric conversion element according to claim 1 , wherein the photoelectric conversion film comprises a p-type photoelectric conversion material and an n-type photoelectric conversion material, the p-type photoelectric conversion material and the n-type photoelectric conversion material being a bulk hetero mixed film.

9. The photoelectric conversion film according to claim 8 , wherein the bulk hetero mixed film is a film having a microstructure in which one of the p-type photoelectric conversion material and the n-type photoelectric conversion material is in a crystal fine particle state and the other is in an amorphous state.

10. The photoelectric conversion film according to claim 8 , wherein the bulk hetero mixed film is a film having a microstructure in which both the p-type photoelectric conversion material and the n-type photoelectric conversion material are in a fine crystalline state.

11. An electronic device comprising a photoelectric conversion film according to claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 6, 2023
From: OBANA, YOSHIAKI; NEGISHI, YUKI; HASEGAWA, YUTA; TAKEMURA, ICHIRO; ENOKI, OSAMU; MOGI, HIDEAKI; MATSUZAWA, NOBUYUKI
To: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Reel/Frame 063872/0236 →
Priority Claims (2)
JP 2014-099816 · May 13, 2014 · national
JP 2015-000695 · Jan 6, 2015 · national
Continuity (4)
Continuation 17242805 · Apr 28, 2021
Continuation 16687275 · Nov 18, 2019
Continuation 15308174
Related Publication 20230329082A1 · Oct 12, 2023
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