Method for manufacturing solar cells
US5445973A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
Abstract
A method for manufacturing solar cells, more specifically thin-film solar cells, particularly thin-film solar cells on which CuInSe.sub.2 is deposited. A substrate is provided on which a multi-layer structure is formed by depositing thereon a layer defined by a compound including several basic substances, such as copper-indium-diselenide (CuInSe.sub.2), or a closely-related compound where copper (Cu) and indium (In) can be replaced totally or partially with Silver (Ag) and gallium (Ga), respectively, and where selenium (Se) can be replaced totally or partially with sulphur (S) and tellurium (Te), and where the concentration of the basic substances in the layer varies. The substrate is placed on the inside of a rotatable, tubular carrier device, after which the substrate is heated, and substance sources are provided for depositing the basic substances on the substrate. One or more of the basic substances is deposited on the substrate by passing respective basic substance sources axially into the tubular carrier device while simultaneously rotating the tubular carrier device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.