Opacity and plasmonic properties of Ag embedded glass based metamaterials

Mathpal, Mohan Chandra; Kumar, Promod; Kumar, Sachin; Tripathi, Anand Kumar; Singh, Manish Kumar; Prakash, Jai; Agarwal, Arvind

doi:10.1039/c4ra14061c

Cited by 65 publications

(40 citation statements)

References 37 publications

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“…Similar behavior has been reported in case of Au NPs in different matrices such as silica glass, the SiO 2 ‐TiO 2 matrix . Plasmonic materials based hybrid noble metal nanostructures with fast nonlinearities near the SPR frequencies with a picoseconds range and ultrafast response are generally considered as a suitable candidates for the various applications such as ultrafast switching, optical communication, optical information processing, optical data storage and optical limiting applications . The NLO response of glass materials containing plasmonic metal NCs have attracted considerable attention due to its high polarisability and ultrafast nonlinear response which can be utilized in making all optical switching devices.…”

Section: Introductionsupporting

confidence: 54%

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Kumar¹,

Mathpal²,

Prakash

et al. 2018

Physica Status Solidi (a)

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Plasmonic based hybrid noble metal nanoclusters (NCs) have gained much interest in various technological applications such as optoelectronics, photonic devices and nonlinear media including biomedical applications due to their tunable optical properties. Here, Ag NCs are grown as embedded in glass using simple ion-exchange process and effect of various parameter including post thermal treatment is studied on tunability of their optical behavior (plasmonic, optical nonlinearity, and photoluminescence properties) in view of their potential applications in nanophotonics devices and as nonlinear media. The tunable optical, structural and thermodynamic properties associated with the rapid growth and agglomeration of Ag NCs in the glass is also studied under the post thermal treatment process. The various techniques such as XRD, RBS, Z-scan and UV-vis, XPS, PL and TEM are used for characterizing ion exchanged samples. A blue shift of 15 nm is observed significantly in optical absorbance as a function of post thermal treatment. Open and closed aperture Z-scan experiments show strong nonlinear absorption coefficients for the Ag NCs. The thermodynamic parameters such as enthalpy (ΔH), entropy (ΔS) and Gibbs energy (ΔG) for the nucleation and growth of the Ag NCs in the glass matrix are calculated at different temperatures with an activation energy of 59 kJ mol À1 obtained by the Arrhenius linear equation and a model is suggested. In addition, these Ag NCs embedded glasses exhibit good antimicrobial activities (against E. coli bacteria) with a change in antibacterial behavior at higher annealing temperature indicating their multifunctional applications. status solidi physica a Surface Plasmon Resonance www.pss-a.com

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Section: Introductionsupporting

confidence: 54%

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Kumar¹,

Mathpal²,

Prakash

et al. 2018

Physica Status Solidi (a)

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“…Further increase in annealing temperature leads to the rapid growth of silver nanoparticles and that might have resulted in the quenching of PL intensity for the samples annealed at 550°C and 600°C for 1h 8,31 . An XPS survey spectrum of the cluster clearly shows the [34][35][36][37][38][39][40] . Simo et al reported that the PL intensity of the ion-exchanged (Na + -Ag + ) sample is increases with increase in molecular clustering, which were formed during annealing below the threshold temperature (410°C) 23 .…”

Section: View Article Onlinementioning

confidence: 99%

“…P. Gangopadhyay et al has reported similar results for silver nanoclusters in ion exchanged soda lime glass followed by thermal annealing in vacuum 32 . The Ag 3d 5/2 peak broadening for the sample annealed at 550°C shows that silver is also partially present in the form of Ag + for the formation of silver oxide (AgO/Ag 2 O phase) [36][37][38][39][40] . Annealing below the threshold value leads to the selective formation of clusters (d<1 nm) which are most likely silver dimmers.…”

Section: View Article Onlinementioning

confidence: 99%

Plasmonic resonance of Ag nanoclusters diffused in soda-lime glasses

Kumar

Mathpal

Tripathi

et al. 2015

Phys. Chem. Chem. Phys.

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Silver nanoclusters were prepared in a soda-lime glass matrix through the ion-exchange (Ag(+)↔ Na(+)) method followed by thermal annealing in an air atmosphere. The nanoscale patterning of Ag nanoclusters embedded in a soda lime glass matrix in an air atmosphere at different annealing temperatures has been investigated. During annealing, Ag(+) is reduced to Ag(0) and subsequently forms silver nanoparticles inside the glass matrix. A blue shift of 20 nm has been observed as a function of the post annealing temperature. The photoluminescence intensity is highest for an annealing temperature of 500 °C for 1 h and continuously decreases as annealing temperature increases up to 600 °C. The presence of spherical nanoparticles with a maximum particle size of 7.2 nm has been observed after annealing at 600 °C for 1 hour, which is consistent with Mie theory based results.

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“…† The chlorine impurity was identified in the EDX pattern on the surface of all the samples due to the precursor used in synthesis, and does not play a major role here for the plasmonic behavior of silver-gold nanoparticles. 8,35 The following equation presents the possible diffusion mechanism for silver exchange in soda-lime glass; The photographs of the formation of film at different stages are shown in Fig.…”

Section: View Article Onlinementioning

confidence: 99%

“…The unique functionalities such as optical magnetism and a negative index of refraction of plasmonic metamaterial based nanostructures have various applications in nanoantennae, integrated nanophotonics, optical cloaks, sub-diffraction imaging, sub-wavelength waveguides, plasmonic conducting substrates, infrared sensors and nanolasers. [6][7][8][9] Plasmonic materials based on silicate glasses containing noble metal nanoclusters are exceptionally promising candidates for ultrafast optical switches and modulators. The plasmonic metamaterials based on noble metals such as silver (Ag) and gold (Au) nanoparticles have unusual dispersion and optical properties.…”

Section: Introductionmentioning

confidence: 99%

Facile deposition and plasmonic resonance of Ag–Au nanoparticles in titania thin film

et al. 2015

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Plasmon resonance in noble metals at the nanoscale is technologically important for various applications as it is an important fundamental building block of plasmonic devices. Silver embedded in a glass matrix followed by the deposition of gold embedded in a titania matrix were synthesized in three to four steps by a simple and inexpensive thermal spray pyrolysis technique. The effects of annealing temperature on the plasmonic response and optical activity of silver and gold nanoclusters in soda-lime glass and titanium dioxide matrices have been investigated using UV-visible absorption spectroscopy and photoluminescence spectroscopy. The surface plasmon resonance (SPR) at a hybrid metal-dielectric interface for silver and gold was shown to be influenced by the presence of Ag + ions and the increased particle size of gold nanoparticles as a function of post annealing temperature. This study reveals that the SPR and the luminescence properties are strongly dependent on the glass matrix, which cannot be achieved in all types of glass slides.Field emission scanning electron micrographs confirming the presence of randomly shaped nanoparticles whose size increases with annealing temperature were inconsistent with the particle size calculated from Mie theory.

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Opacity and plasmonic properties of Ag embedded glass based metamaterials

Abstract: Opacity variations with increasing annealing temperatures in Ag+-exchange soda-lime glass.

Cited by 65 publications

References 37 publications

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Plasmonic resonance of Ag nanoclusters diffused in soda-lime glasses

Facile deposition and plasmonic resonance of Ag–Au nanoparticles in titania thin film

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