Matthias Tan

Quantum Confined Stark Effect in identical and non-identical QD stacks

Quantum Confined Stark Effect in identical and non-identical QD stacks Yui (Matthias) Tan, Woo-Suhl Cho, Muhammad Usman, Gerhard Klimeck

Objective/Problem:

  • Understand experimental Red Shift due to Quantum Confined Stark Effect (QCSE)
  • Comparison of Quantum Confined Stark Effect in identical and non-identical QD stacks

Approach:

  • Realistic multi-million structures in NEMO-3D
    • Dome shaped Quantum Dots
    • Identical: D=15nm,15nm; H=3nm
    • Non-identical: D=15nm,13nm; H=3nm
    • 10nm cap, 25nm substrate, 0.5nm WL
    • ary vertical quantum dot distance
  • In-plane Electrical Field [-20kV/cm,20kV/cm]

Expected Results:

  • Consistency of simulation results with symmetric experimental Quantum Confined Stark Effect
  • Feasibility to calculate value of polarizability

Powerpoint slide as ppt, pdf, or as image below.