Highly solar-energy absorbing device and method of making the same
US4252865A · kind A · utility
47Cited by
1References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1978 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | May 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/261
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention contemplates a highly solar-energy absorbing device wherein the surface exposed to incident solar energy is a particularly characterized roughness of an amorphous semiconductor material, the particular characterization being that of an array of outwardly projecting structural elements of relatively high aspect ratio and at effective lateral spacings which are or include those in the order of magnitude of wavelengths within the solar-energy spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.