Antireflection coated refractory metal matched emitters for use in thermophotovoltaic generators
US6271461A · kind A · utility
19Cited by
39References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Thermophotovoltaic (TPV) electric power generators have emitters with infrared (IR) outputs matched with usable wavelengths for converter cells. The emitters have durable substrates, optional refractory isolating layers, conductive refractory metal or inter-metallic emitter layers, and refractory metal oxide antireflection layers. SiC substrates have tungsten or TaSi.sub.2 emitter layers and 0.14 micron HfO.sub.2, ZrO.sub.2, Al.sub.2 O.sub.3, Ta.sub.2 O.sub.5 and TiO.sub.2 antireflection layers used as IR emitters for GaSb converter cells in TPV generators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.