Method for manufacturing flexible amorphous silicon solar cell
US5356656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Mar 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of manufacturing a flexible amorphous silicon solar cell includes the steps of: a) coating a PI varnish on a glass substrate; b) imidizing the PI varnish film; c) vacuum-depositing a metal film on the PI film; d) vacuum-depositing an amorphous silicon film on the metal film; e) vacuum-depositing a transparent conducting film on the amorphous silicon film; and f) separating the PI film from the glass substrate. The method also provides for preparing the PI varnish by the steps of: 1) preparing a mixed solution of 60-100% by weight aprotic solvent, and 0-40% by weight aromatic solvent; 2) adding into the mixed solution in a mole ratio of 1:9 two aromatic diamines; and 3) further adding in the mixed solution in a mole ratio of 1:5 two aromatic dianhydrides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.