1978-02-22
1979-11-27
Edlow, Martin H.
357 16, 357 61, H01L 2714
Patent
active
041763700
ABSTRACT:
A photovoltaic converter, useful for example as a photodetector or solar cell, comprising a main unit consisting of a p-n heterojunction of a p- or n-type magnetic semiconductor MCr.sub.2 X.sub.4 in which M is Zn, Cd or Hg and X is O, S, Se or Te and an n- or p-type semiconductor M'In.sub.2 S.sub.4 in which M' is Zn, Cd or Hg and which has an optical absorption edge at a shorter wavelength than the optical absorption edge of the MCr.sub.2 X.sub.4 ; a first electrode ohmically fixed to the surface of the MCr.sub.2 X.sub.4 ; and a second electrode fixed ohmically to the surface of the M'In.sub.2 S.sub.4 and allowing light to reach the surface of M'In.sub.2 S.sub.4. With a decrease in temperature, the photovoltaic converter has the long wavelength edge of its spectral photovoltaic response shifted to a longer wavelength contrary to known photovoltaic converters.
REFERENCES:
patent: 3986194 (1976-10-01), Masumoto
Koguchi Nobuyuki
Masumoto Katashi
Edlow Martin H.
National Research Institute for Metals
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