US 12,232,341 B2
Photoelectric conversion element, light-receiving element including the same, photoelectric conversion apparatus, mobile unit, method for manufacturing photoelectric conversion film, and method for manufacturing photoelectric conversion element
Takahiro Yajima, Kanagawa (JP); and Takayuki Sumida, Kanagawa (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 22, 2021, as Appl. No. 17/532,441.
Application 17/532,441 is a continuation of application No. PCT/JP2020/019617, filed on May 18, 2020.
Claims priority of application No. 2019-098541 (JP), filed on May 27, 2019.
Prior Publication US 2022/0085111 A1, Mar. 17, 2022
Int. Cl. H10K 39/32 (2023.01); H10K 30/10 (2023.01); H10K 30/81 (2023.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); H10K 102/00 (2023.01)
CPC H10K 39/32 (2023.02) [H10K 30/10 (2023.02); H10K 30/81 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 2102/00 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A photoelectric conversion element comprising:
a first electrode;
a second electrode; and
a photoelectric conversion layer disposed between the first electrode and the second electrode,
wherein the photoelectric conversion layer includes a first region, a second region disposed between the first region and the second electrode, and a third region that is disposed between the second region and the second electrode and that is in contact with the second region,
an inorganic ligand ratio in the second region is higher than an inorganic ligand ratio in the first region,
an inorganic ligand ratio at the interface of the third region to the second region is lower than the inorganic ligand ratio in the first region, and
the inorganic ligand ratio in the second region increases with increasing proximity to the third region.