| Résumé : |
Etching, surface treatments and synthesis of semiconductors from solutions are attracting a renewed attention due to their increasing utilization in the optoelectronic industry, as for instance for the fabrication of thin film solar cells based on CdTe or CuInSe2.
Chemical deposition in solution and electrodeposition are emerging as a low cost, low temperature and large scale alternative to vapor phase deposition techniques for the elaboration of chalcogenide and oxides films. It is shown how solution chemistry concepts (complexation/precipitation, oxydo-reduction/precipitation) can provide a rational understanding of underlying growth mechanisms (CdS, CdTe, ZnO) and new routes for material synthesis. The fundamental role of the free energy of formation is pointed out to explain auto regulation processes of the composition observed during the growth and the high quality of the resulting films as illustrated by the possessibility of epitaxial growth at near room temperature. |
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Ajouter le résultat dans votre panier Affiner la rechercheChimie des solutions et semi-conducteurs in L'ACTUALITE CHIMIQUE, N° 5 (05/1999)
