Advertisement

Optical excitations of hybrid metal-semiconductor nanoparticles

  • Jakob Ebner
  • Andreas Trügler
  • Ulrich HohenesterEmail author
Regular Article

Abstract

We theoretically investigate Coulomb coupling effects in hybrid metal-semiconductor nanostructures, whose optical response is governed by plasmonic and excitonic effects (plexcitons). The plasmonic response of the nanoparticle is modeled within the framework of Maxwell’s equations, using a suitable dielectric function for the metal, and the excitonic response is described through the Schrödinger equation and the semiconductor Bloch equations. Our approach accounts for the quantum confinement of carriers in the semiconductor, for static screening in the formation of the exciton, and for a dynamic coupling between plasmons and excitons in the optical absorption or scattering. We apply our model to a prototypical CdS-based matchstick structure and investigate the importance of the various Coulomb coupling effects.

Keywords

Mesoscopic and Nanoscale Systems 

References

  1. 1.
    T. Mokari, E. Rothenberg, I. Popov, R. Costi, U. Banin, Science 204, 1787 (2004)ADSCrossRefGoogle Scholar
  2. 2.
    W. Zhang, A.O. Govorov, G.W. Brayant, Phys. Rev. Lett. 97, 146804 (2006)ADSCrossRefGoogle Scholar
  3. 3.
    R. Costi, A.E. Saunders, U. Banin, Angew. Chem. Int. Ed. 49, 4878 (2010)CrossRefGoogle Scholar
  4. 4.
    M.B. Cortie, A.M. McDonagh, Chem. Rev. 111, 3713 (2011)CrossRefGoogle Scholar
  5. 5.
    A. Manjavacas, F.J. Garcia de Abajo, P. Nordlander, Nano Lett. 11, 2318 (2011)ADSCrossRefGoogle Scholar
  6. 6.
    J.I. Climente, J.L. Movilla, G. Goldoni, J. Planelles, J. Phys. Chem. C 115, 15868 (2011)CrossRefGoogle Scholar
  7. 7.
    E. Shaviv, O. Schubert, M. Alves-Santos, G. Goldoni, R. Di Felice, F. Vallee, N. Del Fatti, U. Banin, C. Sönnichsen, ACS Nano 4712, 4719 (2011)Google Scholar
  8. 8.
    E. Cohen-Hoshen, G.W. Bryant, I. Pinkas, J. Sperling, I. Bar-Joseph, Nano Lett. 12, 4260 (2012)ADSCrossRefGoogle Scholar
  9. 9.
    R.D. Artuso, G.W. Bryant, Phys. Rev. B 82, 195419 (2010)ADSCrossRefGoogle Scholar
  10. 10.
    X.W. Chen, V. Sandoghdar, M. Agio, Phys. Rev. Lett. 110, 153605 (2013)ADSCrossRefGoogle Scholar
  11. 11.
    S.A. Maier, Plasmonics: Fundamentals and Applications (Springer, Berlin, 2007)Google Scholar
  12. 12.
    J. Waxenegger, A. Trügler, U. Hohenester, Phys. Rev. B 83, 245446 (2011)ADSCrossRefGoogle Scholar
  13. 13.
    H. Haug, S.W. Koch, Quantum Theory of the Optical and Electronic Properties of Semiconductors (World Scientific, Singapore, 1993)Google Scholar
  14. 14.
    C. Cirarci, R.T. Hill, J.J. Mock, Y. Urzhumov, A.I. Fernandez-Dominguez, S.A. Maier, J.B. Pendry, A. Chilkoti, D.R. Smith, Science 337, 6098 (2012)Google Scholar
  15. 15.
    T.V. Teperik, P. Nordlander, J. Aizpurua, A.G. Borisov, Phys. Rev. Lett. 110, 263901 (2013)ADSCrossRefGoogle Scholar
  16. 16.
    M.O. Scully, M.S. Zubairy, Quantum Optics (Cambridge University Press, Cambridge, 1997)Google Scholar
  17. 17.
    L. Novotny, B. Hecht, Principles of Nano-Optics (Cambridge University Press, Cambridge, 2006)Google Scholar
  18. 18.
    D.J. Griffiths, Introduction to Electrodynamics (Pearson, San Francisco, 2008)Google Scholar
  19. 19.
    C.H. Henry, R.F. Kazarinov, Rev. Mod. Phys. 68, 801 (1996)ADSCrossRefGoogle Scholar
  20. 20.
    V.M. Axt, S. Mukamel, Rev. Mod. Phys. 70, 145 (1998)ADSCrossRefGoogle Scholar
  21. 21.
    U. Hohenester, Phys. Rev. B 66, 245323 (2002)ADSCrossRefGoogle Scholar
  22. 22.
    F. Rossi, T. Kuhn, Rev. Mod. Phys. 74, 895 (2002)ADSCrossRefGoogle Scholar
  23. 23.
    L. Hedin, S. Lundqvist, Solid State Phys. 23, 1 (1969)Google Scholar
  24. 24.
    U. Hohenester, A. Trügler, Comput. Phys. Commun. 183, 370 (2012)ADSCrossRefGoogle Scholar
  25. 25.
    F.J. Garcia de Abajo, A. Howie, Phys. Rev. B 65, 115418 (2002)ADSCrossRefGoogle Scholar
  26. 26.
    P.B. Johnson, R.W. Christy, Phys. Rev. B 6, 4370 (1972)ADSCrossRefGoogle Scholar
  27. 27.
    S. Corni, J. Tomasi, J. Chem. Phys. 114, 3739 (2001)ADSCrossRefGoogle Scholar

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Jakob Ebner
    • 1
  • Andreas Trügler
    • 1
  • Ulrich Hohenester
    • 1
    Email author
  1. 1.Institut für PhysikKarl-Franzens-Universität GrazGrazAustria

Personalised recommendations