Method and structure for providing a uniform micron/sub-micron gap separation within micro-gap thermophotovoltaic devices for the generation of electrical power
US8450598B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Nov 16, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Jan 30, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A near-field energy conversion method, utilizing a sub-micrometer “near-field” gap between juxtaposed infrared radiation receiver and emitter surfaces, wherein compliant membrane structures, preferably fluid-filled, are interposed in the structure for maintaining uniform gap separation. Thermally resistant gap spacers are also used to maintain uniform gap separation. Means are provided for cooling a receiver substrate structure and for conducting heat to an emitter substrate structure. The gap may also be evacuated for more effective operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.