Figure 5.

EQE and IQE spectra. (a) EQE spectra taken at −3-V bias for the 2- or 12-nm a-Ge QW devices. (b) IQE spectrum for the 12-nm a-Ge QW photodetector biased at −3 V.

Cosentino et al. Nanoscale Research Letters 2013 8:128   doi:10.1186/1556-276X-8-128
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