Figure 1

SEM image of single layer of PS spheres
(a), Pt nanoparticles (b) Pt nanoparticles coated Si nanopillar (c) and the schematic diagram of electroluminescent structures (d).
SEM image of single layer of PS spheres
(a), Pt nanoparticles (b) Pt nanoparticles coated Si nanopillar (c) and the schematic diagram of electroluminescent structures (d).