Gold nano-particles fixed on glass

Worsch, Christian; Wisniewski, Wolfgang; Kracker, Michael; Rüssel, Christian

doi:10.1016/j.apsusc.2012.05.010

Cited by 20 publications

(20 citation statements)

References 40 publications

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“…In particular, a considerable attention has been drawn to the structure and properties of thin metal films deposited on non-metal surfaces due to their attractive applications in electronic, magnetic, and optical devices [1]. Gold nanolayers are perspective structures for certain applications due to their unique electrical and optical properties.…”

Section: Introductionmentioning

confidence: 99%

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Gold nanolayer and nanocluster coatings induced by heat treatment and evaporation technique

et al. 2013

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The paper is focused on the preparation and surface characterization of gold coatings and nanostructures deposited on glass substrate. Different approaches for the layer preparation were applied. The gold was deposited on the glass with (i) room temperature, (ii) glass heated to 300°C, and (iii) the room temperature-deposited glass which was consequently annealed to 300°C. The sheet resistance and concentration of free carriers were determined by the van der Pauw method. Surface morphology was characterized using an atomic force microscopy. The optical properties of gold nanostructures were measured by UV–vis spectroscopy. The evaporation technique combined with simultaneous heating of the glass leads to change of the sheet resistance, surface roughness, and optical properties of gold nanostructures. The electrically continuous layers are formed for significantly higher thickness (18 nm), if the substrate is heated during evaporation process. The annealing process influences both the structure and optical properties of gold nanostructures. The elevated temperature of glass during evaporation amplifies the peak of plasmon resonance in the structures, the surface morphology being significantly altered.

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Section: Introductionmentioning

confidence: 99%

“…The thermal annealing of thin gold films produced by thermal evaporation or sputtering can also lead to a disaggregation into particles [1,5,6]. The formation of AuNP from continuous gold layers is driven by the minimization of surface energy and is denoted as solid-state dewetting.…”

Section: Introductionmentioning

confidence: 99%

Gold nanolayer and nanocluster coatings induced by heat treatment and evaporation technique

et al. 2013

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“…2a a typical spectrum of a thin silver layer [34] and in Fig. 2b of a thin gold layer [23,26] is shown. The shape of the spectrum is not significantly affected by the additionally sputtered metal.…”

Section: Resultsmentioning

confidence: 99%

“…First, a substrate is coated by vapor deposition, sputtering or electron beam evaporation, then as a second process step the sample is thermally annealed which results in a dewetting of the layers and the formation of nanoparticles. The dewetting is a process driven by the minimization of the total surface energy (substrate/metal, substrate/air and metal/air) as well as by stress relaxation within the layers [23,[26][27][28][29][30]. Depending on film thickness, particles with diameters in the range of a few nm up to several hundred nm can thus be produced.…”

Section: Introductionmentioning

confidence: 99%

“…The dielectric function of the alloy in a first approximation is the result of a weighted linear combination between the dielectric functions of the pure metals [6,13]. Additionally, the resulting optical behavior in general is affected by many parameters; among these are dielectric properties of the surrounding medium (such as the refractive index), the particle size, the size-distribution as well as the shape of the particles [2,[14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Optical properties of dewetted thin silver/gold multilayer films on glass substrates

Kracker¹,

Worsch²,

Bocker³

et al. 2013

Thin Solid Films

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Multi‐Functional Applications of H‐Glass Embedded with Stable Plasmonic Gold Nanoislands

Gangareddy,

Rudra,

Chirumamilla

et al. 2023

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Metal nanoparticles (MNPs) are synthesized using various techniques on diverse substrates that significantly impact their properties. However, among the substrate materials investigated, the major challenge is the stability of MNPs due to their poor adhesion to the substrate. Herein, it is demonstrated how a newly developed H‐glass can concurrently stabilize plasmonic gold nanoislands (GNIs) and offer multifunctional applications. The GNIs on the H‐glass are synthesized using a simple yet, robust thermal dewetting process. The H‐glass embedded with GNIs demonstrates versatility in its applications, such as i) acting as a room temperature chemiresistive gas sensor (70% response for NO2 gas); ii) serving as substrates for surface‐enhanced Raman spectroscopy for the identifications of Nile blue (dye) and picric acid (explosive) analytes down to nanomolar concentrations with enhancement factors of 4.8 × 106 and 6.1 × 105, respectively; and iii) functioning as a nonlinear optical saturable absorber with a saturation intensity of 18.36 × 1015 W m−2 at 600 nm, and the performance characteristics are on par with those of materials reported in the existing literature. This work establishes a facile strategy to develop advanced materials by depositing metal nanoislands on glass for various functional applications.

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Gold nano-particles fixed on glass

Cited by 20 publications

References 40 publications

Gold nanolayer and nanocluster coatings induced by heat treatment and evaporation technique

Gold nanolayer and nanocluster coatings induced by heat treatment and evaporation technique

Optical properties of dewetted thin silver/gold multilayer films on glass substrates

Multi‐Functional Applications of H‐Glass Embedded with Stable Plasmonic Gold Nanoislands

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