Il Nuovo Cimento D

, Volume 17, Issue 11–12, pp 1349–1354 | Cite as

Optical spectroscopy of opal matrices with CdS embedded in its pores: Quantum confinement and photonic band gap effects

  • V. N. Astratov
  • V. N. Bogomolov
  • A. A. Kaplyanskii
  • A. V. Prokofiev
  • L. A. Samoilovich
  • S. M. Samoilovich
  • Yu. A. Vlasov
Article

Summary

The spectra of transmission and reflection of synthetic opal which has 3-dimensional periodic structure were measured at different orientations of incident beam relative to the sample facets. It is shown that opal behaves as «semi-metallic» photonic band gap (PBG) material in the vicinity of photon energy 2.3 eV. The synthesis of CdS microcrystals embedded in the pores of opal was made for the first time in an attempt to form a system of quantum dots. Optical spectra (reflection and transmission, photoluminescence and Raman scattering) were studied. The results demonstrate good crystallinity of microcrystals embedded in opal matrix and exhibit well-pronounced quantum confinement effects in fundamental edge absorption spectra. The spectral overlap of the PBG of opal with electronic band gap of many of II–VI semiconductors seems to make opal/semiconductor system a promising media for experimental studies of such PBG-related effects as inhibition of spontaneous emission, microcavity polariton, etc.

PACS 71.35

Excitons and related phenomena (including electron-hole drops) 

PACS 78.66.Hf

II–VI semiconductors 

PACS 42.25.Bs

Wave propagation, transmission and absorption 

PACS 01.30.Cc

Conference proceedings 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Stucky G. D. andMcDougall J. E.,Science,247 (1990) 669.ADSGoogle Scholar
  2. [2]
    Bogomolov V. N., Kumzerov Y. A., Romanov S. G. andShuravlev V. V.,Physica C,208 (1993) 371.CrossRefADSGoogle Scholar
  3. [3]
    Sanders J. V.,Nature,204 (1964) 1151.CrossRefGoogle Scholar
  4. [4]
    Yablonovitch E.,Phys. Rev. Lett.,58 (1987) 2059;John S.,Phys. Rev. Lett.,58 (1987) 2486.CrossRefADSGoogle Scholar
  5. [5]
    For a review seeYablonovitch E.,J. Mod. Opt.,41 (1994) 2, 173 and references cited therein.Google Scholar
  6. [6]
    Sözuer H. S., Haus J. W. andInguva R.,Phys. Rev. B,45 (1992) 13962.CrossRefADSGoogle Scholar
  7. [7]
    Ekimov A. I. andEfros Al. L., inLaser Optics of Condensed Matter (Plenum Press, New York, N.Y.) 1988, p. 199.Google Scholar
  8. [8]
    Ekimov A. I., Kudryavtsev I. A., Ivanov M. G. andEfros Al. L.,J. Lumin.,46 (1990) 83.CrossRefGoogle Scholar

Copyright information

© Società Italiana di Fisica 1995

Authors and Affiliations

  • V. N. Astratov
    • 1
  • V. N. Bogomolov
    • 1
  • A. A. Kaplyanskii
    • 1
  • A. V. Prokofiev
    • 1
  • L. A. Samoilovich
    • 2
  • S. M. Samoilovich
    • 3
  • Yu. A. Vlasov
    • 1
  1. 1.A.F. Ioffe Physical-Technical InstituteSt.-PetersburgRussia
  2. 2.AlmazTechnoKristallAleksandrovRussia
  3. 3.Moscow State UniversityMoscowRussia

Personalised recommendations