US 12,439,730 B2
Solar cells
Guangtao Yang, 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 Nov. 3, 2023, as Appl. No. 18/501,236.
Claims priority of application No. 202310512207.6 (CN), filed on May 9, 2023.
Prior Publication US 2024/0379882 A1, Nov. 14, 2024
Int. Cl. H10F 77/30 (2025.01); H10F 10/14 (2025.01); H10F 77/20 (2025.01)
CPC H10F 77/311 (2025.01) [H10F 10/146 (2025.01); H10F 77/211 (2025.01); H10F 77/244 (2025.01); H10F 77/315 (2025.01)] 10 Claims
OG exemplary drawing
 
1. A solar cell, comprising:
a substrate having a first surface and a second surface opposite to each other, the second surface having a first region and a second region adjacent in a first direction;
a first passivation layer located on the first surface;
a first doped layer and a tunnel oxide layer sequentially stacked in the first region;
a first insulating layer located on a surface of the first doped layer away from the substrate;
a second passivation layer located in the second region and extending to a surface of the first insulating layer away from the substrate;
a second doped layer located on a surface of the second passivation layer away from the substrate; and
a second insulating layer located between the second passivation layer and the first doped layer, and between the second passivation layer and the tunnel oxide layer in the first direction, wherein a side of the second insulating layer away from the substrate is in contact with the first insulating layer.