Fig. 5From: Role of Strain-Induced Microscale Compositional Pulling on Optical Properties of High Al Content AlGaN Quantum Wells for Deep-Ultraviolet LEDa Al0.5Ga0.5N slab model generated by 4a × 4b × 3c primitive cells for the simulation. b Schematic of Al0.5Ga0.5N slab model with Al atom or Ga atom adsorbed onto the surface with N ad-layer. c Formation enthalpy of Al atom and Ga atom adsorbed onto the Al0.5Ga0.5N surface as a function on the tensile strain levelBack to article page