US 12,283,642 B2
Solar cell and method for producing the same
Yifan Chen, Zhejiang (CN); Wenqi Li, Zhejiang (CN); Minghui Xie, Zhejiang (CN); and Guochun Zhang, Zhejiang (CN)
Assigned to ZHEJIANG JINKO SOLAR CO., LTD., Zhejiang (CN); and JINKO SOLAR CO., LTD., Jiangxi (CN)
Filed by ZHEJIANG JINKO SOLAR CO., LTD., Zhejiang (CN); and JINKO SOLAR CO., LTD., Jiangxi (CN)
Filed on Aug. 23, 2023, as Appl. No. 18/454,670.
Claims priority of application No. 202310678819.2 (CN), filed on Jun. 8, 2023.
Prior Publication US 2024/0413258 A1, Dec. 12, 2024
Int. Cl. H01L 31/054 (2014.01); H01L 31/0236 (2006.01); H01L 31/18 (2006.01)
CPC H01L 31/054 (2014.12) [H01L 31/0236 (2013.01); H01L 31/186 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A solar cell, comprising:
a substrate, having a first textured surface, wherein the first textured surface has a plurality of first pyramid structures, and wherein a plurality of grid-line areas spaced from each other are formed on the first textured surface, and each grid-line area of the plurality of grid-line areas has a second textured surface;
a plurality of sheet-shaped anti-reflection films, wherein one or more respective sheet-shaped anti-reflection films of the plurality of sheet-shaped anti-reflection films are formed on a portion of the second textured surface of each grid-line area of the plurality of grid-line areas; and
a plurality of grid lines, wherein each grid line of the plurality of grid lines is formed on a respective grid-line area and is in contact with the one or more sheet-shaped anti-reflection films formed on a portion of the second textured surface of the respective grid-line area and with a remaining portion of the second textured surface of the respective grid-line area not covered by any sheet-shaped anti-reflection films;
wherein the second textured surface of each grid-line area of the plurality of grid-line areas has a first portion, a second portion and a third portion in sequence along a direction perpendicular to an extension direction of a grid-line area, and the first portion, the second portion and the third portion each have a plurality of projected structures;
wherein the one or more sheet-shaped anti-reflection films of the plurality of sheet-shaped anti-reflection films are formed on at least some of the plurality of projected structures of the first portion and on at least some of the plurality of projected structures of the third portion; and
wherein no sheet-shaped anti-reflection film is formed on any of the plurality of projected structures of the second portion, and the plurality of projected structures of the first portion and the plurality of projected structures of the third portion include second pyramid structures and/or pyramid-like structures, and the plurality of projected structures of the second portion are pine-cone structures.