InGaN-based nanocoumn emitters suitable for display applications

In this paper, the emission characteristics based on photonic crystal effect of nanocolumn LEDs are discussed. The device exhibited electroluminescence (EL) and photoluminescence (PL) spectra with the narrow linewidth as well as with the sharp radiation beam profile, when the photonic band edge was controlled to be coincident with bandgap of the InGaN/GaN MQW emission region.