Device for conversion of electromagnetic radiation into electrical current
US4278474A · kind A · utility
70Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1980 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Mar 25, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/544
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Electromagnetic energy may be converted directly into electrical energy by a device comprising a sandwich of at least two semiconductor portions, each portion having a p-n junction with a characteristic energy gap, and the portions lattice matched to one another by an intervening superlattice structure. This superlattice acts to block propagation into the next deposited portion of those dislocation defects which can form due to lattice mismatch between adjacent portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.