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Deposit on different back contacts: to high-quality CuInGaS2 thin films for photovoltaic application

  • Amal BouichEmail author
  • Shafi Ullah
  • Hanif Ullah
  • Bernabé Mari
  • Bouchaib Hartiti
  • Mohamed Ebn Touhami
  • D. M. F. Santos
Article

Abstract

Cu(In,Ga)Se2 (CIGS) absorber layer for photovoltaic application was successfully deposited by different substrate, indium tin oxide (ITO), fluorine-doped tin oxide (FTO) and molybdenum (Mo) after optimization of the operating parameters of the deposited films. The structural, morphological, optical and electrical properties of the CIGS films were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The inter-planar distance between the planes is estimated at 0.36 nm. Atomic force microscopy (AFM) samples deposited on Mo had the highest level of 751 nm for roughness compared to other samples. High absorbance and low transmittance are observed for films prepared with a shot interval energy of about 1.6 eV. Optical constants such as the refractive index (n), the extinction coefficient (k), the real part (εr) and the imaginary part (εi) of the dielectric constant were extracted from the data of absorbance/transmittance. The optoelectronic properties of this CuInGaS2 material make it advisable to use it for the manufacture of more efficient solar panels.

Notes

Acknowledgements

This work was supported by Ministerio de Economia y Competitividad (ENE2016-77798-C4-2-R).

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Amal Bouich
    • 1
    • 2
    • 3
    • 4
    Email author
  • Shafi Ullah
    • 1
  • Hanif Ullah
    • 1
  • Bernabé Mari
    • 1
  • Bouchaib Hartiti
    • 3
  • Mohamed Ebn Touhami
    • 2
  • D. M. F. Santos
    • 4
  1. 1.Institut de Disseny i FabricacióUniversitat PolitècnicaValènciaSpain
  2. 2.Laboratoiry LMEEFaculté des Sciences de KenitraKenitraMorocco
  3. 3.MAC &PM Laboratory, ANEPMAER Group FSTMMohamediaMorocco
  4. 4.CeFEMA, IST-U LisboaLisbonPortugal

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