Electrochemical deposition of layered copper thin films based on the diffusion limited aggregation

Abstract

In this work layered copper films with smooth surface were successfully fabricated onto ITO substrate by electrochemical deposition (ECD) and the thickness of the films was nearly 60 nm. The resulting films were characterized by SEM, TEM, AFM, XPS, and XRD. We have investigated the effects of potential and the concentration of additives and found that 2D dendritic-like growth process leaded the formation of films. A suitable growth mechanism based on diffusion limited aggregation (DLA) mechanism for the copper films formation is presented, which are meaningful for further designing homogeneous and functional films.

Chemically modified carbon-based electrodes for the determination of paracetamol in drugs and biological samples

“…Another approach to electrode modification is electrochemical deposition using an electrode/organic-phase/aqueous electrolyte three-phase junction. It is widely used for designing modified electrodes using various nanomaterials including CNTs, Gr, metallic NPs, conducting polymers as well as their composites [ 31 , 32 ]. Electrochemical polymerization is also demonstrated to be a beneficial method that is used for the thin-film coating of polymers on the electrode surface.…”

Deposition of nanomaterials: A crucial step in biosensor fabrication

“…counter) are dipped into the solution and a sufficient current is provided, which helps to reduce the metal ions and polymerize the polymers during deposition on the surface of the working electrode [219]. [223].…”

Shape evolution and effect of organic additives in the electrosynthesis of Cu nanostructures

“…Focusing on the acid conditions, a wide spectrum of operating conditions was reported in the literature. Different substrates were used as working electrode such as copper [12], glassy carbon [15], gold [16], ITO [17], FTO [9] thus obtaining different nanoparticle morphologies [18]. Even bath composition was variable with some preferred mixtures (such as PEG with chloride ions, CTAB, and thiourea generating fine grained deposits) [19,20] and many others less common showing levelling ability (such as picolic acid [21], benzyl-phenyl modified polyethyleneimine [22], ethoxyacetic alcohol and triethyl-benzyl-ammonium chloride [23], citric acid [24], ascorbic acid [25]), or not affecting deposit structure (such as sucrose [26], horse-chestnut extract [23], and saccharin [27]).…”