To determine the experimental quantum efficiency (QE) of transfer, we collect absorbance and PL measurements while exciting the system at different wavelengths. We excite both mixed and in-situ 3 ML NPL and QD at 750 nm to observe energy transfer (donor plus acceptor) and isolate the QD (acceptor only) by exciting at 950 nm, below the band-edge of the NPL near 880 nm (Figure ). After normalizing PL by excitation power this allows us to observe an enhancement in QD PL when exciting into the NPL bandgap. The absorbance of NPL and QD must be noted at both excitation wavelengths, so we use a sample of NPLs only (no QDs present) and QDs only (no NPLs present). The emission at 750 nm (Em750) when exciting both NPL and QD can be expressed as: