Modelling charge density in semiconductor quantum dot devices


PROJECT NUMBER: 91

AUTHOR: Jackson Kuklin, Physics | MENTOR: Meenakshi Singh, Physics

 

ABSTRACT

Quantum dots are artificial structures inside solids that can be produced in a number of ways. Of interest in this research are quantum dots made of electrons confined to a small region in a silicon heterostructure by applying voltages to metal gate electrodes. The key to understanding how the quantum dot behaves is how free electrons move on to or off of the dot. In this presentation, I will discuss the theory behind solving the Schrödinger and Poisson equations self-consistently in order to model charge density inside a quantum dot device. Further, I will show results modelling such a device using nextnano software that can be broadly applied to devices with different heterostructures and gate patterns.

 

VISUAL PRESENTATION

 

AUTHOR BIOGRAPHY

Jackson Kuklin is a junior in engineering physics with a minor in mathematical science. He works in Dr. Singh’s quantum materials and devices research group on a project designing semiconductor quantum dots. He will be continuing this work over the summer and into his senior year. After graduating, he plans to continue research in the field of quantum computing.

 


1 Comment

  1. This looks great Jackson!

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