Molecular-beam epitaxy grows layers of iridium silicide (IrSi3) on silicon at temperatures of 630 to 800 degrees C. Particularly useful as photodetector material because it forms Schottky diodes having potential barriers of only 0.12 to 0.15 eV - lowest of any metal on silicon. Photodiodes sensitive to infrared radiation at wavelengths as large as 8 to 10 micrometers. New, lower formation temperature expected to enable growth of arrays of IrSi3/Si infrared detectors on Si wafers without thermally damaging image-processing circuitry integrated on wafers.
Molecular-Beam Epitaxy Of IrSi3
NASA Tech Briefs ; 15 , 2
1991-02-01
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