Electric Field Effect on Quantum Well

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SUMMARY

The application of an electric field to a quantum well alters its structure, causing the bottom of the well to tilt while maintaining vertical sides. This modification results in a transition from a two-dimensional (2D) density of states to a three-dimensional (3D) bulk density of states. Specifically, above a certain energy threshold, the density of states retains a functional form similar to that of a one-dimensional (1D) box. Reference materials, such as specific slides detailing these changes, provide further insights into this phenomenon.

PREREQUISITES
  • Understanding of quantum wells and their properties
  • Familiarity with electric field effects on semiconductor materials
  • Knowledge of density of states in quantum mechanics
  • Basic concepts of energy levels in quantum systems
NEXT STEPS
  • Research the impact of electric fields on quantum well structures
  • Study the transition from 2D to 3D density of states in semiconductor physics
  • Explore the mathematical modeling of quantum wells under bias conditions
  • Examine reference materials, such as slides or papers, that illustrate these concepts
USEFUL FOR

Physicists, materials scientists, and electrical engineers interested in semiconductor physics and the effects of electric fields on quantum structures will benefit from this discussion.

kpsr
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Hello everybody !

Recently i heard that, application of an electric field onto a quantum well tilts the quantum well
and changes its 2-D density of states to 3-D bulk density. Is this true..?
Can anybody give some more information or reference on this..?

Thanks for any Help.
 
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The application of a constant electric field makes it so that the bottom of the quantum well is slanted, but the sides remain vertical.

I couldn't comment on how the density of states would change, except to say that above a certain energy (larger than the tall side of the slant) I think the density of states should have the same functional form as the regular 1D box.
 
@jfizzix
Thanks for your reply, Please check this Slide's 9th page,
there we can see step like 2-d density of states (DOS) merging to form 3-D DOS under bias.
 

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