Titre : |
Etude des Caractéristiques de la cellule photovoltaïque à Base de CIGS. Modélisation de la Tenue Mécanique |
Type de document : |
texte imprimé |
Auteurs : |
ABIB Hocine Yacine, Auteur ; RAHMOUN, Khadidja, Auteur |
Editeur : |
Université tlemcen |
Année de publication : |
2019 |
Importance : |
160 p. |
Présentation : |
ill. |
Format : |
30 cm |
Accompagnement : |
cd |
Langues : |
Français (fre) |
Résumé : |
Our ultimate goal is to develop a sputter deposition process only; for the development
of CIGS-based solar cells. In addition, achieving a reduced environmental mark, led us to
remove both the selenization step and the cadmium material from the fabrication process. An
original deposition process for the absorbent layer (CIGS) will be presented; it brings together
the three main guidelines, namely the use of a single quaternary target, the absence of the Sebased
process and a limited thermal budget. The mechanical holding of the different layers
composing a CIGS based solar cell is believed to highly affect the longevity of this cell.
Therefore, studying fundamental mechanical properties of the different layers composing a
CIGS solar cell is a real need. Following the analytical model of Jönsson and Hogmark, the
resulting the resulting mark of the nano indentation is used to deduce the mechanical properties
of the studied material. Magnetron sputtering technique was used for the deposition of these
layers except for the cadmium sulphide (CdS) layer which was deposited using chemical bath
deposition process. We performed several indentation tests on the individual layers, i.e.
molybdenum (Mo) back contact layer, CIGS absorber layer, CdS and alternative zinc sulphide
oxide (ZnOS) buffer layers, and zinc oxide (ZnO)-AZO (aluminium-doped zinc oxide)
transparent window layer; all were deposited on glass substrates. We report the values of the
hardness (H) and of the Young's modulus (E) for each material, using indentation tests and an
analytical model. The Mo layer remained the hardest and the most rigid, with H = 8.7 GPa and
E = 185 GPa, while the CIGS layer has shown poor mechanical properties with H = 3 GPa and
E = 58 GPa. On the other hand, the observed similarity in mechanical properties of the ZnO
and ZnOS layers might be attributed to the similarity of their microstructures. The same work
has been reproduced on multilayer structures using the analytical model of Rahmoun and Iost. |
Etude des Caractéristiques de la cellule photovoltaïque à Base de CIGS. Modélisation de la Tenue Mécanique [texte imprimé] / ABIB Hocine Yacine, Auteur ; RAHMOUN, Khadidja, Auteur . - Université tlemcen, 2019 . - 160 p. : ill. ; 30 cm + cd. Langues : Français ( fre)
Résumé : |
Our ultimate goal is to develop a sputter deposition process only; for the development
of CIGS-based solar cells. In addition, achieving a reduced environmental mark, led us to
remove both the selenization step and the cadmium material from the fabrication process. An
original deposition process for the absorbent layer (CIGS) will be presented; it brings together
the three main guidelines, namely the use of a single quaternary target, the absence of the Sebased
process and a limited thermal budget. The mechanical holding of the different layers
composing a CIGS based solar cell is believed to highly affect the longevity of this cell.
Therefore, studying fundamental mechanical properties of the different layers composing a
CIGS solar cell is a real need. Following the analytical model of Jönsson and Hogmark, the
resulting the resulting mark of the nano indentation is used to deduce the mechanical properties
of the studied material. Magnetron sputtering technique was used for the deposition of these
layers except for the cadmium sulphide (CdS) layer which was deposited using chemical bath
deposition process. We performed several indentation tests on the individual layers, i.e.
molybdenum (Mo) back contact layer, CIGS absorber layer, CdS and alternative zinc sulphide
oxide (ZnOS) buffer layers, and zinc oxide (ZnO)-AZO (aluminium-doped zinc oxide)
transparent window layer; all were deposited on glass substrates. We report the values of the
hardness (H) and of the Young's modulus (E) for each material, using indentation tests and an
analytical model. The Mo layer remained the hardest and the most rigid, with H = 8.7 GPa and
E = 185 GPa, while the CIGS layer has shown poor mechanical properties with H = 3 GPa and
E = 58 GPa. On the other hand, the observed similarity in mechanical properties of the ZnO
and ZnOS layers might be attributed to the similarity of their microstructures. The same work
has been reproduced on multilayer structures using the analytical model of Rahmoun and Iost. |
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