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Quantum well structure

Quantum well structure. Quantum well absorption spectrum. = bulk. Exciton binding energy in QWs. Effect of E-field on QW wavefunctions. QCSE by perturbation theory. Eigenstates and eigenenergies of perturbed system:. Perturbation theory:. correction terms. First order correction:.

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Quantum well structure

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  1. Quantum well structure

  2. Quantum well absorption spectrum = bulk

  3. Exciton binding energy in QWs

  4. Effect of E-field on QW wavefunctions

  5. QCSE by perturbation theory Eigenstates and eigenenergies of perturbed system: Perturbation theory: correction terms First order correction:

  6. Second order correction Treat well as infinitely deep:

  7. Energy shifts For n=1 level: For n=2 level:

  8. Evaluate energy shift

  9. Absorption spectra with applied E-field

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