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Can Photons Affect the Elastic Constants in Heavily Doped Nano Wires?

  • R. Paul
  • S. Ghatak
  • S. Das
  • M. Mitra
  • T. DattaEmail author
  • K. P. Ghatak
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 194)

Abstract

Effect of strong photo excitation on the elastic constant (EC) in extremely degenerate Nano-Wires (NW) forming Gaussian band tails has been investigated by deriving a fundamental carrier statistics formula using NWs of Heavily Doped (HD) n-InSb, n-InAs, Hg1−xCdxTe and In1−xGaxAsyP1−y y lattice matched to InP as examples. We observe that ΔC44 becomes invariant of the film thickness under the condition of relatively low values of the quantum thickness, indicating a very sharp fall at a particular value of the nano thickness manifesting the quantum size effect, in EC. The EC increases with decreasing light intensity, wavelength and alloy composition where the rate of change depends on the values of the band constants respectively. The EC can be experimentally determined by using the corresponding the experimental values of the thermo electric power.

Notes

Acknowledgements

The authors are grateful to Prof. Dr. S. Chakrabarti, Director, Institute of Engineering and Management, Kolkata for inspiration and helpful discussion in the real sense of the term.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • R. Paul
    • 1
  • S. Ghatak
    • 2
  • S. Das
    • 3
  • M. Mitra
    • 4
  • T. Datta
    • 5
    Email author
  • K. P. Ghatak
    • 6
  1. 1.Department of CSEUniversity of Engineering and ManagementKolkataIndia
  2. 2.Department of BCA and M.ScInstitute of Engineering and ManagementKolkataIndia
  3. 3.Department of CSEIndian Institute of Engineering Science and TechnologyShibpur, KolkataIndia
  4. 4.Department of ECEIndian Institute of Engineering Science and TechnologyShibpur, KolkataIndia
  5. 5.Department of Basic Science and HumanitiesInstitute of Engineering and ManagementKolkataIndia
  6. 6.Department of ECEUniversity of Engineering and ManagementKolkataIndia

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