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U.S. Department of Energy
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Ga{sub x}In{sub 1{minus}x}As thermophotovoltaic converters

Book ·
OSTI ID:191101
; ; ;  [1]
  1. National Renewable Energy Lab., Golden, CO (United States)
Preliminary research into the development of single-junction Ga{sub x}In{sub 1{minus}x}As thermophotovoltaic (TPV) power converters is reviewed. The devices structures are grown epitaxially on single-crystal InP substrates. Converter band gaps of 0.50--0.74 eV have been considered in accordance with modeling calculations. A 1-sun, AMO efficiency of 12.8% is reported for a lattice-matched, 0.74-eV converter. Converters with lower band gaps are fabricated using lattice-mismatched, compositionally graded structures. Functional TPV converters with good performance characteristics have been demonstrated for band gaps as low as 0.5 eV.
OSTI ID:
191101
Report Number(s):
CONF-941203--; ISBN 0-7803-1459-X
Country of Publication:
United States
Language:
English