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Solution-Based Synthesis and Characterization of Cu2ZnSnS4 (CZTS) Thin Films

Syafiq U 1 , Ataollahi N 2 , Maggio RD 3 , Scardi P 4

Affiliations 

  • 1 Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano, 77, 38123 Trento, Italy. muhammad.mustaffa@unitn.it
  • 2 Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano, 77, 38123 Trento, Italy. narges.ataollahi@unitn.it
  • 3 Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano, 77, 38123 Trento, Italy. rosa.dimaggio@unitn.it
  • 4 Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano, 77, 38123 Trento, Italy. paolo.scardi@unitn.it
Molecules, 2019 Sep 23;24(19).
PMID: 31547625 DOI: 10.3390/molecules24193454

Abstract

Cu2ZnSnS4 (CZTS) ink was synthesized from metal chloride precursors, sulfur, and oleylamine (OLA), as a ligand by a simple and low-cost hot-injection method. Thin films of CZTS were then prepared by spin coating, followed by thermal annealing. The effects of the fabrication parameters, such as ink concentration, spinning rate, and thermal treatment temperatures on the morphology and structural, optical, and electrical properties of the films were investigated. As expected, very thin films, for which the level of transmittance and band-gap values increase, can be obtained either by reducing the concentration of the inks or by increasing the rate of spinning. Moreover, the thermal treatment affects the phase formation and crystallinity of the film, as well as the electrical conductivity, which decreases at a higher temperature.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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