Kinetical and morphological effects during CdTe and Te electrocrystallization on electrohydrodynamical impedance - Sorbonne Université
Article Dans Une Revue Electrochimica Acta Année : 1989

Kinetical and morphological effects during CdTe and Te electrocrystallization on electrohydrodynamical impedance

Résumé

E.H.D. impedance technique was used to investigate two typical electrocrystallization cases where the current is, at least partially, limited by mass transport. In the case of Te electrodeposition, it is shown that the E.H.D. responses of microdendritic layers are similar to that of a flat partially blocked surface, and allow an in situ evaluation of a characteristic size d of the dendritic structure. The transition between smooth and dendritic layers as well as the variations of d vs various parameters were investigated in order to illustrate the possibilities of the method. In the case of CdTe electrodeposition, E.H.D. impedances indicate that a slow surface process is involved in the definite compound formation. The surface concentration of cations differing from zero, the deposits are smooth and compact.

Domaines

Chimie

Dates et versions

hal-04601611 , version 1 (05-06-2024)

Identifiants

Citer

Claude Deslouis, Georges Maurin, Nadine Pebere, Bernard Tribollet. Kinetical and morphological effects during CdTe and Te electrocrystallization on electrohydrodynamical impedance. Electrochimica Acta, 1989, 34 (8), pp.1229-1236. ⟨10.1016/0013-4686(89)87163-4⟩. ⟨hal-04601611⟩
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