A second-order finite volume scheme for three dimensional truncated pyramidal quantum dot

Weichung Wang, Tsung-Min Hwang, Jia Chuan Jang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Three dimensional truncated pyramidal quantum dots are simulated numerically to compute the energy states and the wave functions. The simulation of the hetero-structures is realized by using a novel finite volume scheme to solve the Schrödinger equation. The simulation benefits greatly from the finite volume scheme in threefold. Firstly, the BenDaniel-Duke hetero-junction interface condition is ingeniously embedded into the scheme. Secondly, the scheme uses uniform meshes in discretization and leads to simple computer implementation. Thirdly, the scheme is efficient as it achieves second-order convergence rates over varied mesh sizes. The scheme has successfully computed all the confined energy states and visualized the corresponding wave functions. The results further predict the relation of the energy states and wave functions versus the height of the truncated pyramidal quantum dots.

Original languageEnglish
Pages (from-to)371-385
Number of pages15
JournalComputer Physics Communications
Volume174
Issue number5
DOIs
Publication statusPublished - 2006 Mar 1

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Wave functions
Electron energy levels
Semiconductor quantum dots
quantum dots
wave functions
mesh
energy
simulation

Keywords

  • Energy levels
  • Finite volume scheme
  • Numerical simulations
  • Schrödinger equation
  • Second-order convergence
  • Three dimensional truncated pyramidal quantum dot
  • Wave functions

ASJC Scopus subject areas

  • Computer Science Applications
  • Physics and Astronomy(all)

Cite this

A second-order finite volume scheme for three dimensional truncated pyramidal quantum dot. / Wang, Weichung; Hwang, Tsung-Min; Jang, Jia Chuan.

In: Computer Physics Communications, Vol. 174, No. 5, 01.03.2006, p. 371-385.

Research output: Contribution to journalArticle

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