US 11,728,353 B2
Photoelectric conversion device including perovskite compound, method of manufacturing the same, and imaging device including the same
Yongchul Kim, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 21, 2020, as Appl. No. 17/128,416.
Application 17/128,416 is a continuation of application No. 15/922,103, filed on Mar. 15, 2018, granted, now 10,903,252.
Claims priority of application No. 10-2017-0033871 (KR), filed on Mar. 17, 2017; and application No. 10-2018-0003467 (KR), filed on Jan. 10, 2018.
Prior Publication US 2021/0118920 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 27/142 (2014.01); H01L 31/0463 (2014.01); H01L 31/18 (2006.01); H01L 27/146 (2006.01); H10K 30/20 (2023.01)
CPC H01L 27/142 (2013.01) [H01L 27/14685 (2013.01); H01L 31/0463 (2014.12); H01L 31/18 (2013.01); H10K 30/211 (2023.02); Y02E 10/549 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A photoelectric conversion device comprising:
a first conductive layer;
a second conductive layer;
a photoelectric conversion layer between the first conductive layer and the second conductive layer;
an electron blocking layer between the photoelectric conversion layer and the first conductive layer; and
a hole blocking layer between the photoelectric conversion layer and the second conductive layer,
wherein the electron blocking layer comprises a first perovskite compound represented by Formula 1, and the hole blocking layer comprises a second perovskite compound represented by Formula 2,
[A1][B1][X1(3-n)Y1n]  Formula 1
wherein, in Formula 1,
A1 comprises a monovalent organic cation, a monovalent inorganic cation, or a combination thereof,
B1 comprises a divalent inorganic cation,
X1 and Y1 each independently comprises a monovalent anion, and
n is a real number satisfying 0≤n≤3, and
[A2][B2][X2(3-m)Y2m]  Formula 2
wherein, in Formula 2,
A2 comprises a monovalent organic cation, a monovalent inorganic cation, or a combination thereof,
B2 comprises a divalent inorganic cation,
X2 and Y2 each independently comprises a monovalent anion, and
m is a real number satisfying 0≤m≤3,
wherein the electron blocking layer further comprises a polar polymer, the hole blocking layer further comprises a polar polymer, or a combination thereof, and
wherein the polar polymer comprises polyamic acid, polyimide, polyvinyl alcohol, polyacrylic acid, polyhydroxyethyl methacrylate, polymethyl methacrylate, polyacrylate, polyacrylonitrile, or a combination thereof.