Influence of temperature dependent morphology on localized surface plasmon resonance in ultra-thin silver island films

Venugopal, N. V. S.; Mitra, Anirban

doi:10.1016/j.apsusc.2013.08.062

Cited by 32 publications

(18 citation statements)

References 46 publications

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“…characteristic fingerprint zone which exhibits this phenomenon (by the SNPs) predominantly appears in the range of ∼400-500 nm respectively[29,30]. The absorption spectra of the samples synthesized using coffee extract are shown inFig.4.…”

mentioning

confidence: 99%

Green synthesis of silver nanoparticles using Coffea arabica seed extract and its antibacterial activity

Dhand

Soumya

Bharadwaj

et al. 2016

Materials Science and Engineering: C

507

212

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mentioning

confidence: 99%

Green synthesis of silver nanoparticles using Coffea arabica seed extract and its antibacterial activity

Dhand

Soumya

Bharadwaj

et al. 2016

Materials Science and Engineering: C

507

212

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“…Figure 3 shows the deposition time for which the maximum of S 2 1 is reached for all wavelengths. To provide a numerical value for the percolation threshold, a function of the form A − B exp−λ∕C (16) was fitted to the experimental data, where λ represents the wavelengths from 370 to 1650 nm, and A, B, and C are the fitting parameters. The values obtained for the fit are given in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…The extremely small scale at which silver films (or nanoparticles) are optically and electrically active makes the devices' overall performance highly dependent on the choice of substrate and underlayer, surface treatment, and growth mechanisms [14][15][16][17]. The growth mechanism during the deposition of silver and other transition metals on oxide surfaces has been explained as a surface diffusion, nucleation, and coalescence process in which the initial nucleation sites form and expand to nanoclusters (or nano-islands) by ad-atom capture, while subsequently forming a thin continuous film [18,19].…”

Section: Introductionmentioning

confidence: 99%

Percolation threshold determination of sputtered silver films using Stokes parameters and in situ conductance measurements

2014

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This work presents a straightforward approach to determine the percolation threshold of silver thin films deposited by magnetron sputtering on various oxide layers at room temperature. The proposed method is based on the observation of the coupling of p-polarized light with local surface plasmons. By measuring the first Stokes parameter in real time, one can determine the moment at which the nano-islands of silver begin to coalesce into a continuous film. We confirm the results by in situ and ex situ conductance measurements. The method is then used to assess the percolation threshold on different oxide seed layers such as ZnSnO, ZnO, TiO2, and SiO2.

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“…61 There are widespread studies about the effect of annealing on the structure of Ag films. [62][63][64][65] During the annealing of thin polycrystalline Ag films in oxygen containing atmospheres agglomeration or hillock growth on the surface of the films is observed. The agglomerates are found to increase in size as the temperature is increased.…”

Section: Introductionmentioning

confidence: 98%

Effect of post-annealing treatment on the wetting, optical and structural properties of Ag/Indium tin oxide thin films prepared by electron beam evaporation technique

Azizian‐Kalandaragh¹,

Nouhi²,

Amiri³

2015

mat express

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In this approach, Ag thin films have been prepared using electron beam evaporation technique onto a thin film of tin-doped indium oxide coated ordinary glass substrate. The fabricated thin films were annealed in various temperatures: 100, 200, 300 and 400 C and the effect of annealing on their wetting, structural and morphological properties has been investigated. Scanning electron microscopy (SEM), UV-Visible spectroscopy (UV-Vis), diffuse reflectance spectroscopy (DRS), X-ray diffraction (XRD) and contact angle measurement have been applied for the characterization and study of thin film surfaces. The results of SEM exhibit the aggregation and formation of Ag nanoparticles on the surface of substrate changed through increasing of annealing temperature. The presence of mixed In 2 O 3 -Ag phases in the as-prepared and annealed samples was confirmed by XRD pattern. Optical behavior of thin films was followed by using diffuse reflectance spectroscopy. Wettability studies showed that the contact angle of prepared thin films was influenced by various parameters such as annealing temperature, surface morphology and composition of thin films.

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Influence of temperature dependent morphology on localized surface plasmon resonance in ultra-thin silver island films

Cited by 32 publications

References 46 publications

Green synthesis of silver nanoparticles using Coffea arabica seed extract and its antibacterial activity

Green synthesis of silver nanoparticles using Coffea arabica seed extract and its antibacterial activity

Percolation threshold determination of sputtered silver films using Stokes parameters and in situ conductance measurements

Effect of post-annealing treatment on the wetting, optical and structural properties of Ag/Indium tin oxide thin films prepared by electron beam evaporation technique

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