公开(公告)号：US20230299219A1

公开(公告)日：2023-09-21

申请号：US18325009

申请日：2023-05-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shuojian Su ,  Zhaohui Liu ,  Yandong Wang ,  Yanfen Wang ,  Yongsheng Guo ,  Guodong Chen ,  Chuying Ouyang

IPC: H01L31/032 ,  H01L31/077 ,  H01L31/0368 ,  H01L31/0352 ,  H01L31/18 ,  C01G21/00

CPC classification number: H01L31/032 ,  H01L31/077 ,  H01L31/0368 ,  H01L31/03529 ,  H01L31/1864 ,  C01G21/006 ,  C01P2006/40 ,  C01P2002/34

Abstract: An A/M/X crystalline material, a photovoltaic device, and preparation methods thereof are provided. The photovoltaic device includes a photoactive crystalline material layer. The photoactive crystalline material layer includes a penetrating crystal, where the penetrating crystal is a crystal penetrating through the photoactive crystalline material layer, and a percentage p of a quantity of penetrating crystals in a total quantity of crystals of the photoactive crystalline material layer is ≥80%. The photoactive crystalline material layer includes a backlight side and a backlight crystal, where the backlight crystal is a crystal exposed to the backlight side and has a backlight crystal face exposed to the backlight side. At least one region of the backlight side has an average flatness index Ravg being ≤75.