CZTS PHD THESIS

CZTS thin films were then assembled into the solar cells and their properties as absorber layer were optimized by varying both composition and thickness. These studies suggested a correlation between the increase of the bandgap energy and the improvement of the material quality, which was also confirmed by the performances of the final devices. CZTS samples produced from stacked evaporated precursors allowed achieving a maximum efficiency of 3. In this work, CZTS thin films were grown using two different processes, based on vacuum deposition of precursors, followed by a heat treatment in sulphur atmosphere. Abstract Cu2ZnSnS4 CZTS quaternary compound has attracted much attention in the last years as new abundant, low cost and non-toxic material, with desirable properties for thin film photovoltaic PV applications. The relationship between the absorber layer stoichiometry and the device performances was investigated:

Ateneo Biblioteca Unitn-Eprints Research. The precursors were deposited using two different approaches: The relationship between the absorber layer stoichiometry and the device performances was investigated: CZTS samples produced from stacked evaporated precursors allowed achieving a maximum efficiency of 3. A strong effect of the tin content on the bandgap energy, sub-gap absorption coefficient, crystalline domain and grain size is shown and a model based on the increase of the intrinsic defect density induced by a reduced tin content is proposed. PhD thesis, University of Trento. Materials Science and Engineering.

  M√ČTHODE DISSERTATION HYPOKHAGNE

Ateneo Biblioteca Unitn-Eprints Research. PhD thesis, University of Trento.

A detailed investigation on CZTS optical properties, microstructure, intrinsic defect density and their correlation with the material composition is presented. Home About Cats area Help.

In this work, CZTS thin films were grown using two different processes, based on vacuum deposition of precursors, followed by a heat treatment in sulphur atmosphere.

CZTS samples produced from stacked evaporated precursors allowed achieving pjd maximum efficiency of 3. Abstract Cu2ZnSnS4 CZTS quaternary compound has attracted much attention in the last years as new abundant, low thesid and non-toxic material, with desirable properties for thin film photovoltaic PV applications.

A strong effect of the tin content on the bandgap energy, sub-gap absorption coefficient, crystalline domain and grain size is shown and a model based on the increase of the intrinsic defect density induced by a reduced tin content is proposed.

czts phd thesis

The precursors were deposited using two different approaches: The relationship between the absorber layer stoichiometry and the device performances was investigated: These studies suggested a correlation between the increase of the bandgap energy and the improvement of cztts material quality, which was also confirmed by the performances of the final devices. The co-sputtering route was demonstrated to be a more successful strategy, assuring a fine-control of the film composition with good process reproducibility.

  RELEVANT COURSEWORK TRADUCCION

Materials Science and Engineering.

czts phd thesis

A fast improvement of solar cell efficiency was czys using this approach and a maximum efficiency of 5. Both growth processes were found to give good quality kesterite films, showing CZTS as the main phase, large grains and suitable properties for PV application, but higher homogeneity and stoichiometry control were achieved using the co-sputtering route.

Cu2ZnSnS4 CZTS quaternary compound has attracted much attention in the last years as new abundant, low cost and non-toxic material, with desirable properties for thin film photovoltaic PV applications. CZTS thin films were then assembled thesus the solar cells and their properties as absorber layer were optimized by varying both composition and thickness.

czts phd thesis