Abstract

ABSTRACTNitrogen related absorption bands of the IR spectra are used to determine the content of nitrogen and N—H bonds in a—Si56 Ge44 films. A preferential attachment of nitrogen to silicon is observed. Nitrogen incorporation enhances the normalized photoconductivity to 5 · 107 cm2/V at maximum. This is related to N—H complexes acting as donors. A correlation between optical gap and single oscillator energy is reported.

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