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Physics of Highly Excited States in Solids pp 80–88Cite as

Decay of two indirect excitons to direct and to indirect exciton state in thallous halides

  • Excitonic Molecules
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Part of the book series: Lecture Notes in Physics ((LNP,volume 57))

Abstract

Emissions from highly purified TIC1 and TlBr are studied. The emission due to the radiative decay of the molecule of X +6 xR −6 excitons by leaving one X +6 xR −6 exciton and one M-point phonon through indirect process is found in the vicinity of the absorption edge. The emission due to the radiative decay of two X +6 xR −6 excitons at the same M-point with leaving one X +6 xX −6 exciton at the P-point through zero-phonon process is observed at the energy far lower than the edge.

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References

  1. J. Nakahara, K. Kobayashi and A. Fujii: J. Phys. Soc. Japan 37 (1974) 1312; ibid. 37 (1974) 1319.

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  2. J. Nakahara and K. Kobayashi: J. Phys. Soc. Japan 40 (1976) 180.

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  3. K. Cho: Optics Commun. 8 (1973) 412.

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  4. O. Akimoto and E. Hanamura: J. Phys. Soc. Japan 33 (1972) 1537; ibid. 35 (1973) 973.

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  5. S. Kurita, K. Kobayashi and Y. Onodera: Progr. theor. Phys. Suppl. No.57 (1975) 10.

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  6. S. Kurita and K. Kobayashi: J. Phys. Soc. Japan 30 (1971) 1645.

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  7. The energy of the triplet state of the X +6 x X −6 exciton in TlBr is not known. We assume that the energy separations between the three levels in TlBr are proportional to those in TlC1. We then estimate the energy of the triplet state in TIBr from the observed energy separations between three levels in TlC1 and the observed energy separation between two singlet-triplet states in TlBr.

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Authors and Affiliations

  1. Institute for Solid State Physics, University of Tokyo, Roppongi, 106, Minato-ku, Tokyo, Japan

    Jun'ichirō Nakahara & Koichi Kobayashi

Authors
  1. Jun'ichirō Nakahara
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  2. Koichi Kobayashi
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© 1976 Springer-Verlag

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Nakahara, J., Kobayashi, K. (1976). Decay of two indirect excitons to direct and to indirect exciton state in thallous halides. In: Physics of Highly Excited States in Solids. Lecture Notes in Physics, vol 57. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-07991-2_78

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  • DOI: https://doi.org/10.1007/3-540-07991-2_78

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-07991-0

  • Online ISBN: 978-3-540-37975-1

  • eBook Packages: Springer Book Archive

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