US 11,756,743 B2
Photoelectric conversion element
Tsuyoshi Matsuyama, Shizuoka (JP); Yuuji Tanaka, Shizuoka (JP); Tamotsu Horiuchi, Shizuoka (JP); Takahiro Ide, Shizuoka (JP); Tokushige Kino, Shizuoka (JP); Shigeyo Suzuki, Shizuoka (JP); and Naomichi Kanei, Shizuoka (JP)
Assigned to RICOH COMPANY, LTD., Tokyo (JP)
Filed by Ricoh Company, Ltd., Tokyo (JP)
Filed on Jan. 22, 2021, as Appl. No. 17/155,628.
Application 17/155,628 is a continuation of application No. 16/466,916, granted, now 10,930,443, previously published as PCT/JP2017/042468, filed on Nov. 27, 2017.
Claims priority of application No. 2016-237980 (JP), filed on Dec. 7, 2016; and application No. 2016-237987 (JP), filed on Dec. 7, 2016.
Prior Publication US 2021/0142957 A1, May 13, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01G 9/20 (2006.01); H10K 30/82 (2023.01); H10K 30/83 (2023.01)
CPC H01G 9/2059 (2013.01) [H01G 9/204 (2013.01); H01G 9/2027 (2013.01); H01G 9/2031 (2013.01); H10K 30/82 (2023.02); H10K 30/83 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A photoelectric conversion element, comprising:
a first substrate;
an output extraction terminal part comprising a plurality of micropores;
a first transparent electrode disposed on the first substrate;
a hole-blocking layer disposed on the first transparent electrode;
an electron-transporting layer disposed on the hole-blocking layer;
a hole-transporting layer comprising a hole-transporting material; and
a second electrode disposed on the hole-transporting layer,
wherein the output extraction terminal part has an exposed area of the first transparent electrode through the plurality of micropores configured to extract electricity out from the photoelectric conversion element,
wherein the plurality of micropores are formed in the hole-blocking layer, and the plurality of micropores pierce through the first transparent electrode to reach the first substrate, and
wherein openings of the plurality of micropores are circular shapes, a ratio of an average diameter of the micropores to an average pitch of minimum distances between the adjacent circular micropores is 31.8% or more and 60% or less, and the average pitch is 20 μm or more and 60 μm or less, and
wherein an average thickness of the first transparent electrode is 10 urn or greater but 1,000 nm or less.