Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1998-06-15
2000-04-25
Le, Que T.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
257 22, H01L 3100
Patent
active
060547065
ABSTRACT:
The subject invention includes a far-infrared detector based on InSbBix1-x which operates 12 .mu.m at room temperature with an energy band gap as low as 0.13 eV (9.3 .mu.m) at 77K and 12 .mu.m at 300K. The subject invention may be prepared by growing epitaxial layers of InSbBi on InSb which is grown on a suitable substrate. The wavelength of absorption may be controlled through the variation of the Bi concentration in the InSbBi active layer.
REFERENCES:
patent: 6005127 (1999-12-01), Todd et al.
Le Que T.
Northwestern University
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