Journal of Materials Science: Materials in Electronics

, Volume 30, Issue 24, pp 21096–21105 | Cite as

Experimental and theoretical studies of CuInS2 thin films for photovoltaic applications

  • Ahmed KotbiEmail author
  • Bouchaib Hartiti
  • Salah Fadili
  • Abderraouf Ridah
  • Philippe Thevenin


CuInS2 thin films were synthesized by spray pyrolysis. The films were characterized using X-ray diffraction, Raman spectroscopy, and spectrophotometer (UV–Vis). The structural studies reveal that CuInS2 thin films are of chalcopyrite phase. The complex dielectric constants (εr and εi), the refractive index (n), extinction coefficient (k), absorption coefficient (α), gap energy (Eg), and the optical conductivity (σ) were calculated. The obtained results are suitable for photovoltaic applications. To confirm our experimental results, a series of Ab initio calculations was performed. The generalized gradient approximation and the mBJ potential for the exchange–correlation potential have been used to calculate the band structure, density of states, charge density, and optical properties of CuInS2.



Prof. Bouchaib HARTITI, Senior Associate at ICTP (The Abdus Salam International Center for Theoretical Physics), is very grateful to ICTP for financial support. We thank P. Blaha and K. Schwarz for the Wien2k code.


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

Authors and Affiliations

  1. 1.ERDyS Laboratory, GMEEMDD Group, FSTMHassan II Casablanca UniversityMohammediaMorocco
  2. 2.LIMAT Laboratory, Department of Physics, FSBHassan II Casablanca UniversityCasablancaMorocco
  3. 3.The Abdus Salam International Centre for Theoretical Physics (ICTP)TriesteItaly
  4. 4.LMOPS Laboratory, Department of PhysicsUniversity of LorraineMetzFrance

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