| Autor: |
J. Hills, R. J. Wehrer, M. N. Palmisiano, B. Wernsman, F. Newman, S. D. Link, S. A. Derry, Richard Siergiej, C.S. Murray, D. R. Riley |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
Device Research Conference. Conference Digest (Cat. No.01TH8561). |
| Popis: |
Thermophotovoltaic (TPV) cells are a class of photovoltaic devices designed to convert radiant heat energy (/spl lambda/ > 1.5 /spl mu/m) to electrical power through the use of low bandgap (/spl sim/ 0.5 eV) semiconductor material systems. Efficiencies in a TPV system may be enhanced by matching the spectral output of the radiator to the cell and by reflecting photons with energy h/spl nu/ < E/sub g/ to help maintain heat in the radiator. In this paper, we present an InGaAs/InPAs double heterostructure TPV cell that has achieved a power conversion efficiency of 13.8 % and a power density of 0.54 W/cm/sup 2/ for a graphite radiator operating at 995/spl deg/C and a cell temperature of 27.8/spl deg/C. This represents the best performance of a TPV device for these operating conditions to date. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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