Figure 1: Photonic flash memory cell.

(a) Illustration of the memory device. (b) TEM image of the core/shell nanocrystals. (c) Absorption spectrum of the core/shell nanocrystals. (d) Absorption spectrum of the P3HT film and photoluminescence spectrum of the core/shell nanocrystals. (e) Photoluminescence spectrum of the core/shell nanocrystals inside the P3HT film. Scale bar, 100 nm (b).