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.:
Date of Patent:
May. 14, 2024
Filed:
May. 07, 2018
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
A backside contact solar cell has, on a first main surface of a crystal silicon substrate, a p-type region having a p-conductive type and an n-type region having an n-conductive type, and a positive electrode formed on the p-type region and a negative electrode formed on the n-type region, wherein the positive electrode includes a laminated conductor of a first electric conductor which is formed on the p-type region and which includes a group III element and a second electric conductor which is laminated on the first electric conductor and which has a lower content ratio of the group III element than the first electric conductor, and the negative electrode includes the second electric conductor formed on the n-type region. In this way, a low-cost backside contact solar cell has a high photoelectric conversion efficiency.