IDEAS home Printed from https://ideas.repec.org/a/wsi/srlxxx/v26y2019i03ns0218625x18501676.html
   My bibliography  Save this article

STUDIES ON STRUCTURAL, SURFACE MORPHOLOGICAL, OPTICAL, LUMINESCENCE AND UV PHOTODETECTION PROPERTIES OF SOL–GEL Mg-DOPED ZnO THIN FILMS

Author

Listed:
  • A. MAHROUG

    (Laboratory of Materials Physics and Its Applications, University of M’sila, M’sila 28000, Algeria)

  • B. MARI

    (#x2020;Institut de Disseny per a la Fabricació i Producció Automatitzada, Departamento de Física Aplicada, Universitat Politècnica de València, Camí de Vera S/N, 46022 València, Spain)

  • M. MOLLAR

    (#x2020;Institut de Disseny per a la Fabricació i Producció Automatitzada, Departamento de Física Aplicada, Universitat Politècnica de València, Camí de Vera S/N, 46022 València, Spain)

  • I. BOUDJADAR

    (#x2021;Ceramics Laboratory, Department of Physics, Mentouri University of Constantine, Constantine 25000, Algeria)

  • L. GUERBOUS

    (#xA7;Laser Department, Nuclear Research Centre of Algiers (CRNA), 2 Building Frantz Fanon, B.P. 399, Algiers 16000, Algeria)

  • A. HENNI

    (#xB6;Department of Biological Sciences, Kasdi Merbah University of Ouargla, Ouargla 30000, Algeria)

  • N. SELMI

    (#x2225;Nuclear Research Centre of Birine, P. O. Box 180, Ain Oussera 17200, Djelfa, Algeria)

Abstract

Undoped and magnesium-doped zinc oxide thin films were prepared by the sol–gel method. Results from X-ray diffraction indicated that the films exhibited a hexagonal wurtzite structure and were highly oriented along the c-axis. The intensity of the (002) diffraction peak increased with increasing the Mg doping concentration. Also, Mg doping inhibited the growth of crystallite size which decreased from 46nm to 38nm with doping concentration. Morphological studies by atomic force microscopy (AFM) indicated the uniform thin film growth and the decreasing of grain size and surface roughness with Mg doping. Optical analysis showed that the average transmittance of all films was above 90% in the visible range and Mg doping has significantly enhanced the bandgap energy of ZnO. Two Raman modes assigned to E2L and E2H for the ZnO wurtzite structure were observed for all films. UV emission peak and three defect emission peaks in the visible region were observed by photoluminescence measurements at room temperature. The intensity ratio of UV emission to the visible emission increased with the Mg concentration. Photocurrent measurements revealed that all films presented the photoresponses with n-type semiconducting behavior and their generated photocurrents were reduced by Mg doping. The prepared thin films of high quality with improved properties by Mg doping could be proposed to workers in the field of optoelectronic devices for using them as a strong candidate.

Suggested Citation

  • A. Mahroug & B. Mari & M. Mollar & I. Boudjadar & L. Guerbous & A. Henni & N. Selmi, 2019. "STUDIES ON STRUCTURAL, SURFACE MORPHOLOGICAL, OPTICAL, LUMINESCENCE AND UV PHOTODETECTION PROPERTIES OF SOL–GEL Mg-DOPED ZnO THIN FILMS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 26(03), pages 1-8, April.
    • Handle: RePEc:wsi:srlxxx:v:26:y:2019:i:03:n:s0218625x18501676
    DOI: 10.1142/S0218625X18501676
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0218625X18501676
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0218625X18501676?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:wsi:srlxxx:v:26:y:2019:i:03:n:s0218625x18501676. 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: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .

    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.