We investigated the photoluminescence (PL) properties of a GaAs/AlAs asymmetric seven-folded quantum well (ASFQW) superlattices (SLs) with thin separating barriers within the ASFQW period. The linearly blue-shifted PL was proportional to the applied bias voltage. By performing a numerical analysis of the electric-field dependence of subband energies in the ASFQW, we concluded that this PL originated from consecutive Γ-X mixings between spatially long-range-separated Γ-subband states and an X-state in this ASFQW. These results indicate that various phenomena appear in ASFQW-SLs due to the increased degree of freedom of carrier transport paths, but a precise analysis of the electric field dependence of subband resonances is required. Therefore, the integrated study of AMQW-SLs definitely reveals new physical properties and leads to the development of new devices.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: