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Design and Simulation of a Pyramidal Quantum Dot for Optimized Absorption at 1 eV

This project involves designing a pyramidal quantum dot that optimally absorbs energy close to 1 eV at a vertical incidence (θ=0º). Explore how absorption changes with varying incident angles and the implications of raising the Fermi level to 1 eV. Furthermore, investigate the effects of including more than 20 states in the design calculations. For extra credit, simulate cubic quantum dots (5nm x 5nm x 6nm, 5nm x 6nm x 5nm, and 5nm x 5nm x 5nm) and analyze the behavior of degenerate states. Address the reason behind forbidden and allowed absorption lines.

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Design and Simulation of a Pyramidal Quantum Dot for Optimized Absorption at 1 eV

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  1. Homework Assignment - Project For a pyramidal quantum dot with vertical absorption (theta=0º), design a quantum dot that has the highest absorption energy as close as possible to 1eV. How does the absorption change as a function of incident angle? What happens if the Fermi level is increased to 1eV? What if more states (>20) are included in the design calculation? Extra credit: Simulate a cubic quantum dot where 5nm=Lx=Ly <> Lz=6nm. What happens with the px and py states? What happens to the pz state? (hint: some states are degenerate, make sure you search for at least 10 states.) Simulate a cubic quantum dot where 5nm=Lx=Lz <> Ly=6nm.What happens with the px and py states?(hint: some states are degenerate, make sure you search for at least 10 states.) Simulate a cubic quantum dot with 5nm=Lx=Ly=Lz. What happens to the px, py and pz states?(hint: some states are degenerate, make sure you search for at least 10 states.) Why are certain absorption lines forbidden and others allowed?

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