公开(公告)号：US20250048822A1

公开(公告)日：2025-02-06

申请号：US18719749

申请日：2022-12-08

Applicant: IDEMITSU KOSAN CO.,LTD. ,  THE UNIVERSITY OF TOKYO

Inventor： Motoshi NAKAMURA ,  Issei TAKENAKA ,  Hiroshi SEGAWA ,  Keishi TADA ,  Takeru BESSHO

IPC: H10K30/40 ,  H10K30/57 ,  H10K30/86 ,  H10K71/10 ,  H10K85/30

Abstract: A photoelectric conversion element includes a light absorbing layer, a hole transport layer that transports holes generated by photoexcitation of the light absorbing layer, and a transparent conductive layer that is in contact with the hole transport layer and receives holes from the hole transport layer. The carrier density of the transparent conductive layer is more than 1×1016 cm−3 and 1×1020 cm−3 or less.

公开(公告)号：US20200294727A1

公开(公告)日：2020-09-17

申请号：US16611332

申请日：2018-05-10

Applicant: THE UNIVERSITY OF TOKYO

Inventor： Hiroshi SEGAWA ,  Takeru BESSHO ,  Zeguo TANG

IPC: H01G9/20 ,  H01L51/00

Abstract: To provide a perovskite solar cell having a high conversion efficiency. An organic-inorganic hybrid material applicable to a perovskite solar cell having a first electrode, an electron transport compound layer arranged on the first electrode, a perovskite compound layer arranged on the electron transport compound layer, a hole transport layer arranged on the perovskite compound layer, and a second electrode arranged on the hole transport layer, the organic-inorganic hybrid material comprising a compound represented by “KxA1yA2zPbX1pX2q”. Wherein, K represents potassium, Pb represents lead, A1 and A2 represent freely selectable cations, which may be organic or inorganic, and may be same; X1 and X2 represent halogen atoms, which may be same; x represents a numerical value ranging from 0.01 to 0.20; and y, z, p and q represent freely selectable numerical values which satisfy x+y+z=1 and p+q=3.