Figure 4
From: Integrated colloidal quantum dot photodetectors with color-tunable plasmonic nanofocusing lenses
Detectivity enhancement of the bull's eye photodetector compared with the LR, determined by assuming either shot noise or G–R noise, and detectivity enhancement of the bull's eye structure compared with the SR, determined by assuming shot noise. G-R, generation-recombination; LR, large reference; SR, small reference.
