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:
Jan. 06, 2026
Filed:
Aug. 18, 2022
3sun S.r.l., Catania, IT;
Giuseppe Condorelli, Misterbianco, IT;
Grazia Litrico, Catania, IT;
Salvatore Bellino, Palagonia, IT;
Alfredo Di Matteo, Aci Catena, IT;
Alessandro Furnari, Riposto, IT;
Cosimo Gerardi, Motta S. Anastasia, IT;
3SUN S.R.L., Catania Ct, IT;
Abstract
In multijunction photovoltaic cells, such as for example tandem solar cells having a top sub-cell and a crystalline silicon based bottom sub-cell, efficiency of conversion of solar energy into electrical energy is limited mainly by the junction between a top sub-cell and a bottom sub-cell of the multijunction photovoltaic cell. A multijunction photovoltaic cell of this disclosure at least partially overcomes this drawback because it has an intermediate layer of silicon nitride deposited in a conformal manner with a thickness of between 1 and 10 nm so as to define a P-N tunnel junction between the top sub-cell and the bottom sub-cell. A related fabrication process is also disclosed.