Many other antenna systems have demonstrated extremely high energy transfer efficiencies such as photosynthetic antenna complexes and light harvesting nanotubes. Energy concentration from large area 2D to 0D semiconductors of the same composition however has not been previously explored to our knowledge. It has been shown from 2D TMDs to separately synthesized nanocrystals such as WS2 to PbS-CdS, WS2 to CdSe/ZnS, and MoS2 to CdSeTe/ZnS, as well as in InGaAs quantum wells to CdSe/ZnS QDs. In NPLs, energy transfer from 2D to 0D has been demonstrated from CdSe NPL to metallic nanoparticles such as Pt, Pd, and Au. Similarly, energy transfer from 2D NPLs to molecular chromophores has been demonstrated such as in 3ML CdSe NPLs to conjugated fluorophores. These results are summarized in Figure , where the QE is shown as a function of acceptor density (or the number of reported acceptors per area of donor). In these systems, energy transfer is dominated by FRET and is limited by spectral overlap, distance from donor to acceptor, and high concentrations needed which may induce self-quenching. Our system overcomes all these limitations by having tunable spectral overlap, epitaxial contact between donor and acceptor, and extremely low concentrations of acceptor relative to donor. Together these results all highlight the efficiency of this system for infrared energy concentration using a minimal amount of material and demonstrate its promise in applications such as solar concentration.