Photonic crystals

Tungsten based 2D Photonic crystal emitter has spectral selectivity, so it can improve a photovoltaic (PV) cell efficiency. Especially, Tungsten was selected in TPV emitter because of good stability in high temperature(upper to 1000K). By etching process, we can make photonic crystal with having rod pattern. It has cut-off tunability in short wavelength.

MEL simulates and fabricates tungsten based 2D photonic crystal emitter with rod pattern to apply in thermophotovoltaic system.