Title

Growth and characteristics of ZnO nano-aggregates electrodeposited onto p-Si(1 1 1)

RIS ID

34389

Publication Details

Messai, Z, Ouennoughi, Z, Devers, T, Mouet, T, Harel, V, Konstantinov, K & Bouguechal, N (2010), Growth and characteristics of ZnO nano-aggregates electrodeposited onto p-Si(1 1 1), Applied Surface Science, 257(2), pp. 616-621.

Abstract

In this paper we study nanocrystalline zinc oxide thin films produced by oxidation of electrodeposited zinc nanolayers on a monocrystalline p-Si(1 1 1) substrate. The electrolyte used is ZnCl2, an aqueous solution of 4 × 10−2 mol/l concentration. Several deposits were made for various current densities, ranging from 13 mA/cm2 to 44 mA/cm2, flowing through the solution at room temperature. A parametric study enabled us to assess the effect of the current density on nucleation potential and time as well as zinc films structure. The grazing incidence X-ray diffraction (GIXD) revealed that both Zn and ZnO films are polycrystalline and nanometric. After 1-h oxidation of zinc films at 450 °C in the open air, the structural analyses showed that the obtained ZnO films remained polycrystalline with an average crystal size of about 47 nm and with (1 0 0), (0 0 2) and (1 0 1) as preferential crystallographic orientations.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.apsusc.2010.07.045