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Proceedings Paper

Extending response of Schottky-barrier IR detectors to longer wavelengths
Author(s): Dietrich Meyerhofer; Harvey R. Gilmartin
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Paper Abstract

PtSi/silicon Schottky barrier detectors and focal plane arrays are important components for the near and medium infrared spectral range. Ir/Si silicon detectors have smaller barriers with response to the 10 - 12 micrometers range, but are difficult to manufacture reliably. An alternate way to extending the spectral response of these detectors is to use a heavier doped substrate, particularly if only a thin surface layer is heavily doped. We have modeled such surface doped Schottky barriers and have calculated the expected photoresponse. Considerable reductions in barrier height are possible while keeping dark currents to a minimum. Experimental results confirm the model.

Paper Details

Date Published: 15 October 1993
PDF: 9 pages
Proc. SPIE 2022, Photodetectors and Power Meters, (15 October 1993); doi: 10.1117/12.158583
Show Author Affiliations
Dietrich Meyerhofer, David Sarnoff Research Ctr. (United States)
Harvey R. Gilmartin, David Sarnoff Research Ctr. (United States)

Published in SPIE Proceedings Vol. 2022:
Photodetectors and Power Meters
Kenneth J. Kaufmann, Editor(s)

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