A novel method for the production of highly adherent Au layers on glass substrates used in surface plasmon resonance analysis: substitution of Cr or Ti intermediate layers with Ag layer followed by an optimal annealing treatment

Ghorbanpour, Mohammad; Falamaki, Cavus

doi:10.1186/2193-8865-3-66

Cited by 21 publications

(10 citation statements)

References 18 publications

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“…Other adhering layers, such as the highly transparent and conductive ITO (indium tin oxide) [ 24 ] and FTO (fluorine-doped tin oxide) [ 30 ] have also been suggested. Ghorbanpour and Falamaki [ 31 ] have replaced the Cr and Ti intermediate layers with silver, followed by an annealing treatment.…”

Section: Solid-state Dewetting Of Thin Metal Films: Principle and mentioning

confidence: 99%

Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review

et al. 2020

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Nano-islands are entities (droplets or other shapes) that are formed by spontaneous dewetting (agglomeration, in the early literature) of thin and very thin metallic (especially gold) films on a substrate, done by post-deposition heating or by using other sources of energy. In addition to thermally generated nano-islands, more recently, nanoparticle films have also been dewetted, in order to form nano-islands. The localized surface plasmon resonance (LSPR) band of gold nano-islands was found to be sensitive to changes in the surrounding environment, making it a suitable platform for sensing and biosensing applications. In this review, we revisit the development of the concept of nano-island(s), the thermodynamics of dewetting of thin metal films, and the effect of the substrate on the morphology and optical properties of nano-islands. A special emphasis is made on nanoparticle films and their applications to biosensing, with ample examples from the authors’ work.

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Section: Solid-state Dewetting Of Thin Metal Films: Principle and mentioning

confidence: 99%

Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review

et al. 2020

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“…The weak adhesion of Au on glass is well-documented in the literature. 20 Au films were also prepared on flexible plastic substrates. They showed similar properties and behaviour as the films on glass, but the results are not reported in this study.…”

Section: Deposition Of the Au Thin Filmsmentioning

confidence: 99%

Preparation of Electrically Conductive Au Thin Films by Colloid Sedimentation

Petek

Bukovec

Škofic

2015

ACSi

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Dedicated to the memory of Prof. Dr. Jurij V. Bren~i~. AbstractA novel and facile wet-chemical method for the preparation of Au thin films is presented. The Au thin films were deposited on glass substrates by the gravitational sedimentation of Au colloids. The colloids were formed by chemical reduction in ethanol using HAuCl 4 and NaBH 4 with no added surfactants. Without stabilizing agents the colloids quickly aggregated, settled to the bottom and formed a thin film. The sedimentation of the colloids was monitored using UV-vis spectroscopy. Thin films with Au loads ranging between 0.25 and 4.0 g m -2 were prepared and characterized by means of UV-vis spectroscopy, electrical resistance measurements, optical microscopy, scanning electron microscopy, and cyclic voltammetry. The results showed that nanostructured Au films with a very high specific surface area were formed. The films were electrically conductive and partially transparent to visible light.

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“…Furthermore, the maximum absorption located at around 360 nm in the samples is slightly red shifted to higher wavelengths by increments of time and temperature in ion exchange. This red shift can be attributed to the agglomerations in the samples (Ghorbanpour and Falamaki, 2013). XRF results revealed that the major loading of Zn was accomplished within the first min.…”

Section: Dr Uv-vis Spectra Analysismentioning

confidence: 92%

Preparation of Zinc Oxide-Nanoclay Hybrids by Alkaline Ion Exchange Method

Garshasbi

Ghorbanpour

Nouri

et al. 2017

Braz. J. Chem. Eng.

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ZnO/nanoclay hybrids are synthesized by a single-step solid-state reaction using ZnCl 2 as a reagent. These hybrids were prepared by a simple alkaline ion exchange method, without using any surfactant or chelating agents. By adjusting the reagent's immersion time in molten salt, production of pure ZnO/nanoclay hybrids was achieved. Synthesized hybrids were characterized by UV-vis diffuse reflectance spectroscopy, XRD, XRF and SEM. SEM confirmed increased nanoclay porosity. The XRD pattern of the ZnO/nanoclay indicated small changes in the intensity and position of the interlayer spacing of montmorillonite. Antibacterial activity of the hybrids against Escherichia coli and Staphylococcus aureus were assessed using disc diffusion. The results show that the antibacterial efficiency of the hybrid is not influenced by the time or the temperature of ion exchange, but is affected by bacterial type.

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A novel method for the production of highly adherent Au layers on glass substrates used in surface plasmon resonance analysis: substitution of Cr or Ti intermediate layers with Ag layer followed by an optimal annealing treatment

Cited by 21 publications

References 18 publications

Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review

Gold Nano-Island Platforms for Localized Surface Plasmon Resonance Sensing: A Short Review

Preparation of Electrically Conductive Au Thin Films by Colloid Sedimentation

Preparation of Zinc Oxide-Nanoclay Hybrids by Alkaline Ion Exchange Method

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