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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 12672419 B1

PDFFull Text
Date of Patent:
Jun. 30, 2026

Filed:

Feb. 21, 2022

Tandem solar cell and manufacturing method therefor

Applicant:

Jusung Engineering Co., Ltd., Gwangju-si, KR;

Inventors:

Jae Ho Kim, Gwangju-si, KR;

Chul Joo Hwang, Gwangju-si, KR;

Assignee:

JUSUNG ENGINEERING CO., LTD., , KR;

Attorney:

Renaissance IP Law Group LLP

Primary Examiner:

Uyen M Tran

Int. Cl.
CPC ...
H10K 30/57 (2023.01); H10K 30/30 (2023.01); H10K 30/40 (2023.01); H10K 39/10 (2023.01); H10K 39/12 (2023.01); H10K 39/15 (2023.01); H10K 39/18 (2023.01); H10K 71/20 (2023.01); H10K 71/60 (2023.01); H10K 85/50 (2023.01);
U.S. Cl.
CPC ...
H10K 30/57 (2023.02); H10K 30/30 (2023.02); H10K 30/40 (2023.02); H10K 39/10 (2023.02); H10K 39/12 (2023.02); H10K 39/15 (2023.02); H10K 39/18 (2023.02); H10K 71/20 (2023.02); H10K 71/60 (2023.02); H10K 85/50 (2023.02);
Abstract

The present inventive concept relates to a method of manufacturing a tandem solar cell, the method including: a step of preparing a perovskite solar cell, including a first conductive charge transporting layer, a light absorption layer, and a second conductive charge transporting layer, on a substrate; a step of forming a partition part in the perovskite solar cell to form a first perovskite unit solar cell and a second perovskite unit solar cell; a step of forming a contact part in the first perovskite unit solar cell to expose a certain region of the first perovskite unit solar cell; a step of forming a buffer layer in a top surface of each of the first perovskite unit solar cell and the second perovskite unit solar cell; a step of preparing a plurality of second solar cells; a step of bonding the plurality of second solar cells to the buffer layer to form a first unit tandem solar cell where the first perovskite unit solar cell, the buffer layer, and the second solar cell are sequentially stacked and a second unit tandem solar cell where the second perovskite unit solar cell, the buffer layer, and the second solar cell are sequentially stacked; and a step of electrically connecting the first unit tandem solar cell to the second unit tandem solar cell.

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