Figure . a) Literature diffusion constants reported for QD films, conjugated polymers, oligoacene triplets and singlets, nanotubes, 2D semiconductors, and nanoplatelets at room temperature. b) Energy transfer efficiency rates for 2D to 0D systems including TMDs and quantum well (QW) to NCs, NPLs to NCs, our results, and NPLs to conjugated fluorophores. Comparison to other diffusion constants and other 2D-0D heterostructures. Finally, in Figure we compare the theoretical diffusion constant (indicated by *) to other excitonic materials of interest for optoelectronic applications. to the 2D TMDs, highlighting their similarity to extended 2D semiconductors. NPLs' large areas and exciton diffusion constants are essential for their antenna functionality, and although they draw the strongest comparison to 2D materials, they have the advantage of being extremely good emitters. 2D TMDs commonly have low PLQY after exfoliation (< 1 to 6%) due to surface defects and require significant efforts to boost the PLQY, such as with superacid treatment. NPLs on the other hand offer high PLQY after synthesis (~10% here for HgTe NPLs) and have access to milder solution-based treatments like passivation or shelling to minimize defects and reach near unity PLQY. They present a promising path forward towards large area semiconductors for energy collection antennas.