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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12446389 B1

PDFFull Text
Date of Patent:
Oct. 14, 2025

Filed:

Oct. 16, 2023

Tandem cell, method for preparing the same, and photovoltaic module

Applicants:

Jinko Solar Co., Ltd., Jiangxi, CN;

Zhejiang Jinko Solar Co., Ltd., Zhejiang, CN;

Inventors:

Yuanfang Zhang, Jiangxi, CN;

Menglei Xu, Jiangxi, CN;

Jie Yang, Jiangxi, CN;

Xinyu Zhang, Jiangxi, CN;

Assignees:

ZHEJIANG JINKO SOLAR CO., LTD., Haining, CN;

JINKO SOLAR CO., LTD., Jiangxi, CN;

Attorney:

USCH Law, PC

Primary Examiner:

Sadie White

Int. Cl.
CPC ...
H10K 30/57 (2023.01); H10K 39/10 (2023.01); H10K 71/12 (2023.01); H10K 71/16 (2023.01); H10K 71/20 (2023.01); H10K 71/30 (2023.01); H10K 85/50 (2023.01);
U.S. Cl.
CPC ...
H10K 30/57 (2023.02); H10K 39/10 (2023.02); H10K 71/12 (2023.02); H10K 71/164 (2023.02); H10K 71/236 (2023.02); H10K 71/30 (2023.02); H10K 85/50 (2023.02);
Abstract

The tandem cell includes a bottom cell including a substrate. The substrate has a first side and a second side, the first side has a first textured surface including at least one first protrusion structure. The bottom cell further includes a tunneling dielectric layer and a doped conductive layer. A surface of the doped conductive layer has a micro textured surface including at least one micro protrusion structure, and the micro protrusion structure is smaller than the first protrusion structure. The tandem cell further includes a composite layer conformal to the micro textured surface. The tandem cell further includes a top cell formed on the composite layer. The top cell includes a first transport layer, a perovskite substrate, a second transport layer, a transparent conductive layer, and an anti-reflection layer stacked sequentially. The first transport layer is conformal to the micro textured surface.

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