Patent ID: 11923468
Assignee: JINKO SOLAR CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A photovoltaic module comprising:
at least one cell string, each of the least one cell string formed by a plurality of photovoltaic cells which are electrically connected;
at least one encapsulation layer, each of the at least one encapsulation layer configured to cover a surface of a respective cell string; and
at least one cover plate, each of the at least one cover plate configured to cover a surface of a respective encapsulation layer facing away from the respective cell string;
wherein each of the plurality of photovoltaic cells includes:
a substrate, wherein the substrate has a front surface with a plurality of metal pattern regions and a plurality of non-metal pattern regions;
a plurality of first pyramid structures and a plurality of second pyramid structures disposed in each of the plurality of metal pattern regions, wherein a dimension of a bottom portion of each of the plurality of first pyramid structures is greater than a dimension of a bottom portion of each of the plurality of second pyramid structures;
a plurality of third pyramid structures and a plurality of fourth pyramid structures disposed in each of the plurality of non-metal pattern regions, wherein a dimension of a bottom portion of each of the plurality of third pyramid structures is greater than a dimension of a bottom portion of each of the plurality of fourth pyramid structures; and wherein an area proportion of the plurality of first pyramid structures on a portion of the front surface of the substrate in a respective metal pattern region is greater than an area proportion of the plurality of third pyramid structures on a portion of the front surface of the substrate in a respective non-metal pattern region;
a first tunneling layer and a first doped conductive layer stacked on the portion of the front surface of the substrate in the respective metal pattern region in a direction away from the substrate; and
a second tunneling layer and a second doped conductive layer stacked on a rear surface of the substrate in a direction away from the substrate.