Research Article

Epitaxial Growth of Optoelectronically Active Ga(As)Sb Quantum Dots on Al-Rich AlGaAs with GaAs Capsule Layers

Figure 2

Electronic/hole QD energies and bulk material band edges for three QD heterostructures with different Al contents x in the single-layer barriers (flat band conditions including stress/strain). Pyramidal QDs with 25 nm base width and 3 nm height are assumed.