US 12,471,403 B2
Solar cell, method for manufacturing the same, 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 May 3, 2024, as Appl. No. 18/654,091.
Application 18/654,091 is a continuation of application No. 18/386,531, filed on Nov. 2, 2023, granted, now 12,125,937.
Claims priority of application No. 202310548868.4 (CN), filed on May 16, 2023.
Prior Publication US 2024/0387768 A1, Nov. 21, 2024
Int. Cl. H10F 77/20 (2025.01); H10F 71/00 (2025.01); H10F 77/30 (2025.01); H10F 77/70 (2025.01)
CPC H10F 71/129 (2025.01) [H10F 71/00 (2025.01); H10F 71/121 (2025.01); H10F 77/211 (2025.01); H10F 77/703 (2025.01); H10F 77/311 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A solar cell, comprising:
a substrate, including a first surface, a second surface, and at least one first side surface, the first surface and the second surface being opposite to each other, the at least one first side surface being adjacent to and between the first surface and the second surface, and at least the first surface and a portion of the at least one first side surface of the substrate including a textured structure;
a doped conducting layer, disposed at least on the first surface and the portion of the at least one first side surface to cover the textured structure;
a first passivation layer, stacked on the doped conducting layer and covering the first surface and at least the portion of the at least one first side surface, thereby covering at least the doped conducting layer;
a passivating contact layer, disposed on the second surface; and
a second passivation layer, stacked on the passivating contact layer and covering the second surface, thereby covering the passivating contact layer;
wherein the portion of the at least one first side surface of the substrate including the textured structure is a textured region, the at least one first side surface further includes a flat region adjacent to the textured region, and the textured region is adjacent to the first surface; and
wherein on the at least one first side surface, an edge of the first passivation layer is flush with an edge of the doped conducting layer, or the first passivation layer extends beyond an edge of the doped conducting layer along a thickness direction of the substrate.