Performance status of 0.55 eV InGaAs thermophotovoltaic cells

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Data on {approximately} 0.55 eV In{sub 0.72}Ga{sub 0.28}As cells with an average open-circuit voltage (Voc) of 298 mV (standard deviation 7 mV) at an average short-circuit current density of 1.16 A/cm{sup 2} (sdev. 0.1 A/cm{sup 2}) and an average fill-factor of 61.6% (sdev. 2.8%) is reported. The absorption coefficient of In{sub 0.72}Ga{sub 0.28}As was measured by a differential transmission technique. The authors use a numerical integration of the absorption data to determine the radiative recombination coefficient for In{sub 0.72}Ga{sub 0.28}As. Using this absorption data and simple one-dimensional analytical formula the above cells are modeled. The models show that the cells ... continued below

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12 p.

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Wojtczuk, S.; Colter, P.; Charache, G. & DePoy, D. October 1, 1998.

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  • Knolls Atomic Power Laboratory
    Publisher Info: Knolls Atomic Power Lab., Schenectady, NY (United States)
    Place of Publication: Schenectady, New York

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Data on {approximately} 0.55 eV In{sub 0.72}Ga{sub 0.28}As cells with an average open-circuit voltage (Voc) of 298 mV (standard deviation 7 mV) at an average short-circuit current density of 1.16 A/cm{sup 2} (sdev. 0.1 A/cm{sup 2}) and an average fill-factor of 61.6% (sdev. 2.8%) is reported. The absorption coefficient of In{sub 0.72}Ga{sub 0.28}As was measured by a differential transmission technique. The authors use a numerical integration of the absorption data to determine the radiative recombination coefficient for In{sub 0.72}Ga{sub 0.28}As. Using this absorption data and simple one-dimensional analytical formula the above cells are modeled. The models show that the cells may be limited more by Auger recombination rather than Shockley-Read-Hall (SRH) recombination at dislocation centers caused by the 1.3% lattice mismatch of the cell to the host InP wafer.

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12 p.

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OSTI as DE99001609

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  • 4. National Renewable Energy Laboratory (NREL) conference on thermophotovoltaic generation of electricity, Denver, CO (United States), 11-14 Oct 1998

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  • Other: DE99001609
  • Report No.: KAPL-P--000121
  • Report No.: K--98163;CONF-981055--
  • Grant Number: AC12-76SN00052
  • Office of Scientific & Technical Information Report Number: 307871
  • Archival Resource Key: ark:/67531/metadc685281

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  • October 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • May 16, 2016, 5:19 p.m.

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Wojtczuk, S.; Colter, P.; Charache, G. & DePoy, D. Performance status of 0.55 eV InGaAs thermophotovoltaic cells, article, October 1, 1998; Schenectady, New York. (digital.library.unt.edu/ark:/67531/metadc685281/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.