Enhancing the Out-Coupling Efficiency of Organic Light-Emitting Diodes Using Two-Dimensional Periodic Nanostructures

<table>The enhancement factor of triangular lattice PhCs and square lattice PhCs as a function of period.</table>

Advances in Materials Science and Engineering

Figure 4: Enhancing the Out-Coupling Efficiency of Organic Light-Emitting Diodes Using Two-Dimensional Periodic Nanostructures 