Light-Output Enhancement of GaN-Based Light-Emitting Diodes with Three-Dimensional Backside Reflectors Patterned by Microscale Cone Array

<table>The angular reflectivity of various flat reflectors. The incident angle is measured from normal to substrate, and the reflectance spectra are calculated at the wavelength of 460 nm.</table>

The Scientific World Journal

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Figure 4

Figure 4: Light-Output Enhancement of GaN-Based Light-Emitting Diodes with Three-Dimensional Backside Reflectors Patterned by Microscale Cone Array 