公开(公告)号：US20240172555A1

公开(公告)日：2024-05-23

申请号：US18483875

申请日：2023-10-10

Applicant: Purdue Research Foundation

Inventor： Letian Dou ,  Jiaonan Sun ,  Ke Ma

IPC: H10K85/50 ,  H10K30/50 ,  H10K30/81 ,  H10K30/86 ,  H10K71/12 ,  H10K71/40 ,  H10K71/60

CPC classification number: H10K85/50 ,  H10K30/50 ,  H10K30/81 ,  H10K30/86 ,  H10K71/12 ,  H10K71/40 ,  H10K71/60 ,  H10K30/20

Abstract: A device and a photovoltaic device, both of which include a 3D perovskite layer and an organic 2D perovskite layer operationally connected to the 3D perovskite layer and defining a heterojunction interface. The photovoltaic device further includes an electrode layer, a hole transport layer operationally connected to and sandwiched between the electrode layer and the organic 2D perovskite layer, a substrate layer, and a tin oxide layer operationally connected to and sandwiched between the substrate layer and the 3D perovskite layer. Also provided is a method of making the photovoltaic device.

公开(公告)号：US20220246865A1

公开(公告)日：2022-08-04

申请号：US17586869

申请日：2022-01-28

Applicant: Purdue Research Foundation

Inventor： Letian Dou ,  Ke Ma

IPC: H01L51/00 ,  C07F7/22 ,  H01G9/00 ,  H01G9/20 ,  H01L51/42 ,  H01L51/44

Abstract: The present disclosure relates to novel perovskite solar cells, and the method of making and using the novel perovskite solar cells. More specifically, a triple cation perovskite solar cell device containing a multifunctional capping layer (MCL) of R1NH3+ and/or a thin layer of two-dimensional (2D) material of (R1NH3+)2(A+)n−1(M2+)n(X−)3n+1 on top of the commonly used ABX3 perovskite, with enhanced power conversion efficiency of 22.06% (from 19.94%) with long-term stability over 1000 hours under continuous illumination has been developed.