US 12,453,209 B2
Solar cell and manufacturing method thereof, photovoltaic module, and photovoltaic system
Chengfa Liu, Changzhou (CN); Hong Chen, Changzhou (CN); Daming Chen, Changzhou (CN); and Yifeng Chen, Changzhou (CN)
Assigned to TRINA SOLAR CO., LTD., Changzhou (CN)
Filed by TRINA SOLAR CO., LTD., Changzhou (CN)
Filed on Jun. 26, 2024, as Appl. No. 18/754,287.
Claims priority of application No. 202310892241.0 (CN), filed on Jul. 20, 2023.
Prior Publication US 2024/0347653 A1, Oct. 17, 2024
Int. Cl. H10F 77/70 (2025.01); H10F 77/30 (2025.01)
CPC H10F 77/703 (2025.01) [H10F 77/311 (2025.01)] 19 Claims
OG exemplary drawing
 
1. A solar cell, comprising:
a substrate comprising a first surface and a second surface arranged opposite to each other and a plurality of lateral surfaces adjacent to and located between the first surface and the second surface; a plurality of pyramid base shaped textured structures being constructed on the second surface and each of the lateral surfaces, wherein each of the pyramid base shaped textured structures has a shape of a truncated pyramid and has a top surface, and wherein a minimum side length of each of the top surfaces of the pyramid base shaped textured structures arranged on the lateral surfaces is L1, a maximum side length of each of the top surfaces of the pyramid base shaped textured structures arranged on the second surface is L2, and L1>L2;
a doped conductive layer arranged on the first surface; and
a passivated contact layer comprising a polysilicon doped conductive layer, the passivated contact layer being arranged on the second surface.