SILAR-Based Application of Various Nanopillars on GaN-Based LED to Enhance Light-Extraction Efficiency

Figure 6

Schematic diagrams of the difference of material and shape of nanostructures: (a) LED with flat surface ITO, (b) LED with SiO₂ nanopillars, (c) LED with SiO₂/ITO nanopillars, and (d) LED with ITO nanopillars.

(a)

(b)

(c)

(d)