CZTS PHD THESIS

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. 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. Materials Science and Engineering. PhD thesis, University of Trento. Home About User area Help. 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. Ateneo Biblioteca Unitn-Eprints Research.

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. Ateneo Biblioteca Unitn-Eprints Research. The relationship between the absorber layer stoichiometry and the device performances was investigated: Materials Science and Engineering. A fast improvement of solar cell efficiency was obtained using this approach and a maximum efficiency of 5.

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czts phd thesis

The co-sputtering route was demonstrated to be a more successful strategy, assuring a fine-control of the film composition with good process reproducibility. The relationship between the absorber layer stoichiometry and the device phhd was investigated: A strong effect pjd 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.

Browsing Ph.D THESES by Subject “CZTS thin films”

These studies suggested a correlation between the increase of the bandgap energy and the improvement of the material quality, which tnesis also confirmed by the performances of the final devices. PhD thesis, University of Trento.

czts phd thesis

Ateneo Biblioteca Unitn-Eprints Research. A detailed investigation on CZTS optical properties, microstructure, intrinsic defect density and their correlation with the material composition is presented.

Materials Science and Engineering. A fast improvement of solar cell efficiency was obtained 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 thesiss homogeneity and stoichiometry control were achieved using the co-sputtering route.

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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. CZTS samples produced from stacked evaporated precursors allowed achieving a maximum efficiency of 3.

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czts phd thesis

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. The precursors were deposited using two different approaches: 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 into the solar cells and their properties as absorber layer were optimized by varying both composition and thickness.