Photovoltaic device and method for manufacturing photovoltaic device
US11302829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/251
Abstract
A photovoltaic device according to the present disclosure includes: a first-conductivity-type semiconductor film provided on a back side of a semiconductor substrate; a second-conductivity-type semiconductor film in which at least a part thereof is provided in a position different, in plan view, from a position of the first-conductivity-type semiconductor film on the back side of the semiconductor substrate; a protective film, which is formed on a back side of the first-conductivity-type semiconductor film and a back side of the second-conductivity-type semiconductor film, and which includes a conductive portion and a non-conductive transformed portion; and an electrode film formed on a back side of the conductive portion. The transformed portion of the protective film is provided along a conduction path between a back surface of the first-conductivity-type semiconductor film and a back surface of the second-conductivity-type semiconductor film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.