Optical and Quantum Electronics

, Volume 44, Issue 3–5, pp 89–94

Atomistic simulation of InGaN/GaN quantum disk LEDs

  • Marco Lopez
  • Fabio Sacconi
  • Matthias Auf der Maur
  • Alessandro Pecchia
  • Aldo Di Carlo
Article

Abstract

In this work electronic and optoelectronic properties of InGaN/GaN nanocolumn quantum disk LEDs have been studied with the multiscale simulation tool tiberCAD. Calculations have been performed with an atomistic tight-binding model. Results shows that emission energies have a minor dependence on the nanocolumn dimension while In concentration in the active region is a critical parameter.

Keywords

Optoelectronics properties GaN nanocolumn InGaN quantum disk Atomistic simulation Tight-binding 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Auf der Maur M., Sacconi F., Penazzi G., Romano G., Pecchia A., Di Carlo A.: The multiscale paradigm in electronic device simulation. IEEE Trans. Electron Devices. 58(5), 1425 (2011)ADSCrossRefGoogle Scholar
  2. Barettin, D., Pecchia, A., Penazzi, G., Auf der Maur, M., Lassen, B., Willatzen, M., Di Carlo, A.: Comparison of continuum and atomistic methods for the analysis of InAs/GaAs quantum dots. In: Proceedings of the 11th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD’11, 5th–8th September, Rome, Italy, 177–178 (2011)Google Scholar
  3. Di Carlo A.: Microscopic theory of nanostructured semiconductor devices: beyond the envelope-function approximation. Semicond. Sci. Technol. 18, 1 (2003)ADSCrossRefGoogle Scholar
  4. et al.: Appl. Phys. Lett. 81, 4838 (2002)ADSCrossRefGoogle Scholar
  5. Povolotskyi M., Di Carlo A.: Elasticity theory of pseudomorphic heterostructures grown on substrates of arbitrary thickness. J. Appl. Phys. 100, 063514 (2006)ADSCrossRefGoogle Scholar
  6. TiberCAD multiscale simulation software. http://www.tiberCAD.org

Copyright information

© Springer Science+Business Media, LLC. 2012

Authors and Affiliations

  • Marco Lopez
    • 1
  • Fabio Sacconi
    • 1
  • Matthias Auf der Maur
    • 1
  • Alessandro Pecchia
    • 1
  • Aldo Di Carlo
    • 1
  1. 1.Department of Electronic EngineeringUniversity of Rome “Tor Vergata”RomeItaly

Personalised recommendations