Study of ceria thin films prepared via electrochemical deposition: Role of selected electrochemical parameters on growth kinetics

Maria Dronova, Virginie Lair, Philippe Vermaut, Armelle Ringuedé, Vladimir An

Research output: Contribution to journalArticle

Abstract

A three-electrode electrochemical cell was used for the synthesis of ceria thin films in an aqueous nitrate media, using the electrogenerated base method. The choice of the precursor of hydroxide is important regarding the mechanisms involved and the morphology of the deposits. The current-time curves were analyzed for the estimation of the growth kinetics. The scanning electronic microscopy analyses showed that a needle-like shape is characteristic of the CeO2 thin films. For the thin films deposited within 20 and 60 min, the thickness was 336 nm and 1 µm, respectively, confirming the linearity of the thickness with the deposition duration.

Original languageEnglish
Article number137674
JournalThin Solid Films
Volume693
DOIs
Publication statusPublished - 1 Jan 2020

Fingerprint

Growth kinetics
Cerium compounds
Thin films
kinetics
thin films
Electrochemical cells
electrochemical cells
needles
Needles
Nitrates
hydroxides
linearity
nitrates
Microscopic examination
Deposits
deposits
microscopy
Scanning
Electrodes
scanning

Keywords

  • Cerium oxide
  • Chronoamperometry
  • Electrodeposition
  • Raman spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Study of ceria thin films prepared via electrochemical deposition : Role of selected electrochemical parameters on growth kinetics. / Dronova, Maria; Lair, Virginie; Vermaut, Philippe; Ringuedé, Armelle; An, Vladimir.

In: Thin Solid Films, Vol. 693, 137674, 01.01.2020.

Research output: Contribution to journalArticle

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AB - A three-electrode electrochemical cell was used for the synthesis of ceria thin films in an aqueous nitrate media, using the electrogenerated base method. The choice of the precursor of hydroxide is important regarding the mechanisms involved and the morphology of the deposits. The current-time curves were analyzed for the estimation of the growth kinetics. The scanning electronic microscopy analyses showed that a needle-like shape is characteristic of the CeO2 thin films. For the thin films deposited within 20 and 60 min, the thickness was 336 nm and 1 µm, respectively, confirming the linearity of the thickness with the deposition duration.

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