US 12,439,725 B2
Solar cell, solar cell module, and method for manufacturing solar cell
Zhangwei Dang, Xi'an (CN); Minghua Bai, Xi'an (CN); Hui Li, Xi'an (CN); Huijun Zhu, Xi'an (CN); and Feilin Ping, Xi'an (CN)
Assigned to LONGI SOLAR TECHNOLOGY(XI'AN) CO., LTD., Xi'an (CN)
Filed by LONGI SOLAR TECHNOLOGY (XI'AN) CO., LTD., Xi'an (CN)
Filed on Mar. 17, 2025, as Appl. No. 19/081,291.
Application 19/081,291 is a continuation of application No. PCT/CN2024/122489, filed on Sep. 29, 2024.
Claims priority of application No. 202311355729.6 (CN), filed on Oct. 18, 2023.
Prior Publication US 2025/0221086 A1, Jul. 3, 2025
Int. Cl. H10F 77/162 (2025.01); H10F 19/90 (2025.01); H10F 71/00 (2025.01); H10F 77/30 (2025.01)
CPC H10F 77/162 (2025.01) [H10F 19/902 (2025.01); H10F 71/128 (2025.01); H10F 71/129 (2025.01); H10F 71/134 (2025.01); H10F 77/311 (2025.01); H10F 77/315 (2025.01)] 17 Claims
OG exemplary drawing
 
1. A solar cell, comprising:
a semiconductor substrate, having a light receiving surface and a back surface opposite to the light receiving surface;
a dielectric layer, formed on at least one of the back surface or the light receiving surface of the semiconductor substrate, wherein a thickness of the dielectric layer is less than or equal to a predetermined threshold;
a passivation layer, formed on the dielectric layer;
a first electrode, formed on the passivation layer; and
metallic crystals, formed in the passivation layer,
wherein the metallic crystals comprise a plurality of first metallic crystals, wherein an end surface of a first metallic crystal of the plurality of first metallic crystals abuts against the dielectric layer, and another end surface of the first metallic crystal is connected to the first electrode, wherein a ratio of a quantity of the plurality of first metallic crystals to a quantity of the metallic crystals is greater than or equal to 2% and less than or equal to 20%.