Corrosion of an amorphous indium tin oxide film on polyethylene terephthalate at low concentrations of acrylic acid

Bejitual, T.S.; Ramji, Karpagavalli; Kessman, Aaron J.; Sierros, Konstantinos A.; Cairns, Darran R.

doi:10.1016/j.matchemphys.2011.11.043

Cited by 25 publications

(14 citation statements)

References 29 publications

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“…Thus, understanding the ITO interface is an important issue. In this context, the cathodic and anodic corrosion of ITO electrode has been reported1516171819. For example in acidic media, the cathodic polarization of ITO conduces to the formation of metallic particles (In-Sn) onto the surface1516.…”

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confidence: 99%

Multifunctional Indium Tin Oxide Electrode Generated by Unusual Surface Modification

Bouden

Dahi

Hauquier

et al. 2016

Sci Rep

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The indium tin oxide (ITO) material has been widely used in various scientific fields and has been successfully implemented in several devices. Herein, the electrochemical reduction of ITO electrode in an organic electrolytic solution containing alkali metal, NaI, or redox molecule, N-(ferrocenylmethyl) imidazolium iodide, was investigated. The reduced ITO surfaces were investigated by X-ray photoelectron spectroscopy and grazing incident XRD demonstrating the presence of the electrolyte cation inside the material. Reversibility of this process after re-oxidation was evidenced by XPS. Using a redox molecule based ionic liquid as supporting electrolyte leads to fellow electrochemically the intercalation process. As a result, modified ITO containing ferrocenyl imidazolium was easily generated. This reduction process occurs at mild reducing potential around −1.8 V and causes for higher reducing potential a drastic morphological change accompanied with a decrease of the electrode conductivity at the macroscopic scale. Finally, the self-reducing power of the reduced ITO phase was used to initiate the spontaneous reduction of silver ions leading to the growth of Ag nanoparticles. As a result, transparent and multifunctional active ITO surfaces were generated bearing redox active molecules inside the material and Ag nanoparticles onto the surface.

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confidence: 99%

Multifunctional Indium Tin Oxide Electrode Generated by Unusual Surface Modification

Bouden

Dahi

Hauquier

et al. 2016

Sci Rep

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“…These adhesives usually contain an acidic component, such as acrylic acid (AA), to improve cohesion and supply the remaining reaction sites with a curing agent [20]. However, if this acidic component is added to the OCA, it could corrode the metallic circuits of the device underneath [21][22][23]. Therefore, the concept of non-acid curing is emerging as an important aspect of OCA development.…”

Section: Introductionmentioning

confidence: 99%

UV/UV step-curing of optically clear acrylate adhesives for mobile devices

Js¹,

Shim²,

Baek³

et al. 2019

Express Polym. Lett.

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In order to overcome the issues of rework and height difference in the manufacturing of smart devices, UV/UV stepwise curing was conducted on acrylate-based optically clear adhesives. Photo differential scanning calorimetry was used to confirm the results of curing of samples that were processed both with and without acrylic acid, over a range of UV light exposure times for a primary curing process. The samples processed at 0.6 J/cm 2 of UV energy with and without acrylic acid showed the highest amount of residual monomers after primary curing. The amount of residual monomers observed in primary-cured samples decreased as the amount of UV light energy increased, from 0.9 to 1.5 J/cm 2. After secondary curing, only the samples cured at 0.6 J/cm 2 showed small amounts of residual monomers, while the samples exposed to other UV energies showed very few residual monomers, implying that these samples were completely cured during the secondary curing step. Adhesion properties were evaluated using peel and tack tests, while the viscoelastic properties of the samples were confirmed by dynamic mechanical analysis. Our results indicate that uniform physical properties were achieved after secondary curing. The effects of stepwise curing are demonstrated by the difference in gel fractions determined after primary and secondary curing.

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“…The nature of the oxide in ITO, the extent of hydrolysis of the lattice, and the density and orientation of the oxide grains, can all lead to a fairly high degree of surface heterogeneity. The high concentration of carriers in ITO arises from the various defect sites that include oxygen vacancies, interstitial indium, and substitutional Sn 4+ at In 3+ sites 16 . Chemical reactions are to be expected to take place preferentially at the chemically active defect sites.…”

Section: Introductionmentioning

confidence: 99%

“…After the seminal paper 35 that demonstrated the influence of applied potential on the composition of indium oxide was published, the electrochemical reduction of ITO has been studied with different electrolytes at different pHs 16,[36][37][38][39][40][41][42][43][44][45] ; most of the studies focused on the electrochemical stability of ITO, rather than the influence of surface modifications. In 2014, Switzer et al, successfully deposited Ge wires by first reducing ITO to form In metal that acted as reduction sites for Ge (IV) 46 .…”

Section: Introductionmentioning

confidence: 99%

Optimization of the nucleation-site density for the electrodeposition of cadmium sulfide on indium-tin-oxide

Shen

Zhang

Mubeen

et al. 2019

Electrochimica Acta

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Cadmium sulfide (CdS) is a preferred heterojunction partner for a number of chalcogenide-based solar cells. In view of this, interest has grown in the use of solution-based deposition techniques as an alternative route for the preparation of uniform ultrathin films of CdS. However, the quality of the electrodeposited CdS films on indium-tin oxide (ITO) remains far from optimal. This is because the ITO surface is electrochemically heterogeneous due to the presence of indium oxide; nucleation and further electrodeposition of CdS does not transpire on the oxided sites. Hence, only coarse-grained coatings, instead of homogeneous ultrathin films, are generated at un-pretreated ITO surfaces. In the present study, a mitigation of the amount of interfacial In oxide was attempted in order to increase the nucleation-site (indium-metal site) density. The procedure consisted of two steps: (i) Mild electrochemical reduction of the ITO to convert surface In(III) to In(0), followed by (ii) surface-limited redox replacement (SLRR) of In(0) by Cu via an aqueous solution of Cu 2+. This procedure resulted in the formation of a high density of oxide-free Cu on which CdS nuclei would form; the thickness was such that optical transparency was largely undiminished. A tenfold increase in CdS site density was observed, and that permitted the epitaxial growth of a second semiconductor, CdTe, atop the CdS film. The influences of applied potential and deposition time on nucleation-site sizes and densities were also studied.

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Corrosion of an amorphous indium tin oxide film on polyethylene terephthalate at low concentrations of acrylic acid

Cited by 25 publications

References 29 publications

Multifunctional Indium Tin Oxide Electrode Generated by Unusual Surface Modification

Multifunctional Indium Tin Oxide Electrode Generated by Unusual Surface Modification

UV/UV step-curing of optically clear acrylate adhesives for mobile devices

Optimization of the nucleation-site density for the electrodeposition of cadmium sulfide on indium-tin-oxide

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