Microstructural, structural and piezoelectric properties of nanorod-like ZnO layers deposited by the two-step CBD process - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Mediterranean Journal of Chemistry Année : 2024

Microstructural, structural and piezoelectric properties of nanorod-like ZnO layers deposited by the two-step CBD process

Résumé

ZnO layers were grown on SiO2 substrates by Chemical Bath Deposition (CBD) and characterized in terms of morphological, structural and local piezoelectric properties. The critical factors that allow the oriented growth of ZnO in nanorod configuration were carefully examined with a goal of getting close-packed -oriented nanostructures for local piezoelectric measurements. After a first step consisting of creating ZnO-seeded layers on SiO2 substrates, the development of ZnO nanorods on these homo-buffer layers was more specifically studied through precursor concentration and growth time parameters. Morphological studies by X-ray diffraction and scanning electron microscopy illustrate that a suitable adjustment of these two factors (0.025M equimolar solution, 4h-dip coating) resulted in dense nanostructures with hexagonal wurtzite crystalline state. As-grown films exhibited a strong preferential out-of-plane orientation along the polar c-axis. Atomic force microscopy in contact mode (namely Electrostatic Force Microscopy or EFM) was used to determine the effective piezoelectric coefficient (d33) of such 1D-textured nanosystems. Values around 9.5 pm/V could be measured.
Fichier principal
Vignette du fichier
Pub73 - MedJChem2024.pdf (666.14 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04508602 , version 1 (18-03-2024)

Identifiants

Citer

Véronique Bornand. Microstructural, structural and piezoelectric properties of nanorod-like ZnO layers deposited by the two-step CBD process. Mediterranean Journal of Chemistry, 2024, 14 (1), pp.69-78. ⟨10.13171/mjc02403131749bornand⟩. ⟨hal-04508602⟩
1 Consultations
3 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More