Fig. 7From: Designs of InGaN Micro-LED Structure for Improving Quantum Efficiency at Low Current DensityEnergy band diagrams of 2QWs LED with a 3 × 1018 cm−3 and b 6 × 1019 cm−3 doping concentration in AlGaN EBL. c Space charge density and d carrier concentration distribution of 2QWs LED with 3 × 1018 and 6 × 1019 cm−3 doping concentration of EBL. The inset of c shows the direction of polarization fieldsBack to article page