US 12,342,638 B2
Imaging device
Shinichi Machida, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Sep. 15, 2022, as Appl. No. 17/932,483.
Application 17/932,483 is a continuation of application No. PCT/JP2021/009975, filed on Mar. 12, 2021.
Claims priority of application No. 2020-062361 (JP), filed on Mar. 31, 2020.
Prior Publication US 2023/0026531 A1, Jan. 26, 2023
Int. Cl. H10F 39/12 (2025.01); C09K 11/02 (2006.01); H04N 25/62 (2023.01); H10F 39/00 (2025.01); H10K 30/30 (2023.01); H10K 30/35 (2023.01); H10K 39/32 (2023.01); H10K 85/50 (2023.01); B82Y 20/00 (2011.01)
CPC H10F 39/191 (2025.01) [C09K 11/02 (2013.01); H04N 25/62 (2023.01); H10F 39/805 (2025.01); H10F 39/8057 (2025.01); H10K 30/35 (2023.02); H10K 30/353 (2023.02); H10K 85/50 (2023.02); B82Y 20/00 (2013.01); H10K 39/32 (2023.02)] 16 Claims
OG exemplary drawing
 
1. An imaging device comprising:
a semiconductor substrate;
a plurality of pixel electrodes located above the semiconductor substrate and each electrically connected to the semiconductor substrate;
a counter electrode located above the plurality of pixel electrodes;
a first photoelectric conversion layer located between the counter electrode and the plurality of pixel electrodes; and
at least one first light-shielding body located in the first photoelectric conversion layer or above the first photoelectric conversion layer, wherein
the first photoelectric conversion layer contains
semiconductor quantum dots having a property of absorbing light in a first wavelength range and
a coating material that covers the semiconductor quantum dots and that has a property of absorbing light in a second wavelength range and emitting fluorescence in a third wavelength range, and
the at least one first light-shielding body absorbs or reflects light with a wavelength in at least part of the second wavelength range.