IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v34y2009i1p71-74.html
   My bibliography  Save this article

The role of thermal treatment on the optical properties of Ge0.15Se0.85 system

Author

Listed:
  • Alnajjar, Abdalla Abdelaziz

Abstract

The Ge0.15Se0.85 alloy has been prepared in evacuated quartz tubes. Thin amorphous film of Ge0.15Se0.85 system has been prepared by using thermal evaporation technique with 400±5nm thickness. Atomic absorption spectroscopy (AAS) was used to determine the concentration of the composite elements (Ge and Se). Amorphous structure was observed for prepared films by using X-ray diffraction (XRD). The optical properties of Ge0.15Se0.85 system have been studied as a function of annealing temperatures (Ta=300, 350, 400 and 450K). The results showed that optical transitions are direct and indirect. The energy gap Eg increased with increasing annealing temperature, i.e the absorption edge shifts to lower wavelength. The refractive index, extinction coefficient and real and imaginary parts of dielectric constant for these films vary with heat treatment. Outcome of our study confirms that this system may be used for photovoltaic devices.

Suggested Citation

  • Alnajjar, Abdalla Abdelaziz, 2009. "The role of thermal treatment on the optical properties of Ge0.15Se0.85 system," Renewable Energy, Elsevier, vol. 34(1), pages 71-74.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:1:p:71-74
    DOI: 10.1016/j.renene.2008.03.025
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148108001195
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2008.03.025?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:renene:v:34:y:2009:i:1:p:71-74. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.