Germanium blocked-impurity-band far-infrared detectors

Watson, Dan M.; Huffman, James E.
May 1988
Applied Physics Letters;5/9/1988, Vol. 52 Issue 19, p1602
Academic Journal
Ge:Ga blocked-impurity-band detectors having long-wavelength thresholds of 190 μm and peak quantum efficiencies of 4% have been fabricated. This performance approaches that of state-of-the-art discrete Ge:Ga photoconductors, with the additional benefit of good response at wavelengths longer than that obtained with unstressed photoconductors.


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