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Journal of Materials Science

, Volume 42, Issue 17, pp 7176–7179 | Cite as

A study of the optical absorption in CdTe by photoacoustic spectroscopy

  • O. Vigil-Galán
  • E. Marín
  • J-Sastré Hernández
  • E. Saucedo
  • C. M. Ruiz
  • G. Contreras-Puente
  • A. Calderón
Article

Abstract

We show that the Photo-Acoustic Spectroscopy (PAS) is an useful alternative method for the determination of the optical-absorption coefficient of CdTe thin films, in the spectral region near to the fundamental absorption edge, ranging from 1.0 eV to 2.4 eV, using an open cell in the transmission configuration. We applied this method to the optical characterization of CdTe layers for several values of their thickness. These CdTe samples were deposited by closed-space vapor transport (CSVT) technique under different growth conditions.

Keywords

Fundamental Absorption Edge CdTe Layer Photoacoustic Spectroscopy Absorption Length CdTe Film 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This work was partially supported by Consejo Nacional de Ciencias y Tecnología (CONACyT-México). ES also thanks to the MEK of Spain for the fellowship AP2003–1388.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • O. Vigil-Galán
    • 1
  • E. Marín
    • 2
    • 4
  • J-Sastré Hernández
    • 1
  • E. Saucedo
    • 3
  • C. M. Ruiz
    • 3
  • G. Contreras-Puente
    • 1
  • A. Calderón
    • 2
  1. 1.Escuela Superior de Física y Matemáticas-IPNMexicoMexico
  2. 2.Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada-IPNMexicoMexico
  3. 3.Departamento de Física de Materiales, Facultad de CienciasUniversidad Autónoma de MadridMadridSpain
  4. 4.Facultad de FísicaUniversidad de La HabanaVedadoCuba

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