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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 7 — Jul. 1, 2013
  • pp: 977–988

Exciton states of II–VI tetrapod-shaped nanocrystals

Yuanzhao Yao, Takashi Kuroda, Dmitry N. Dirin, Anastasia A. Irkhina, Roman B. Vasiliev, and Kazuaki Sakoda  »View Author Affiliations


Optical Materials Express, Vol. 3, Issue 7, pp. 977-988 (2013)
http://dx.doi.org/10.1364/OME.3.000977


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Abstract

Excitons of tetrapod-shaped nanocrystals made of CdTe, CdS, CdSe, ZnTe, and ZnSe were investigated systematically by numerical diagonalization of configuration interaction Hamiltonian based on single-particle states obtained by finite-element method. Both one-particle and exciton wave functions have high spatial symmetries due to the tetrahedral symmetry of the nanocrystals, which leads to a distinct selection rule for optical absorption and emission. The absorption spectra thus calculated were compared with available experimental data and good agreement was found.

© 2013 OSA

OCIS Codes
(160.6000) Materials : Semiconductor materials
(160.4236) Materials : Nanomaterials

ToC Category:
Semiconductors

History
Original Manuscript: April 8, 2013
Revised Manuscript: June 7, 2013
Manuscript Accepted: June 10, 2013
Published: June 17, 2013

Citation
Yuanzhao Yao, Takashi Kuroda, Dmitry N. Dirin, Anastasia A. Irkhina, Roman B. Vasiliev, and Kazuaki Sakoda, "Exciton states of II–VI tetrapod-shaped nanocrystals," Opt. Mater. Express 3, 977-988 (2013)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-3-7-977


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