Solar cell and method of manufacturing the same
US10600926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/547
Abstract
A solar cell includes a semiconductor substrate, a first semiconductor region positioned at a front surface or a back surface of the semiconductor substrate and doped with impurities of a first conductive type, a first electrode on the first semiconductor region, a second electrode on the back surface of the semiconductor substrate, and a second semiconductor region positioned between the semiconductor substrate and the second electrode and doped with impurities of a second conductive type opposite the first conductive type, wherein the second electrode is formed of a metal foil, and an air gap is formed between the second electrode formed of the metal foil and the back surface of the semiconductor substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.