Abstract
Experimental photoluminescence spectra obtained for silicon are compared to predictions made using transmission and reflection data, as well as those using the action (or induced photo-product) spectrum. Although the absorptivity obtained from the optical measurements can be used to predict much of the photoluminescence curve, the predicted values may deviate from measurements at long wavelengths. The photoluminescence spectrum for Si, and for photosynthesis found in green plants, may also be predicted from action spectra. Both techniques yield a reasonable fit to the experimental spectral distribution and the predicted chemical potentials and voltages are consistent with electrical measurements.
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