Surface plasmon amplification in refractory transition metal nitrides based nanoparticle dimers

Juneja, Sagar; Shishodia, Manmohan Singh

doi:10.1016/j.optcom.2018.09.069

Cited by 28 publications

(22 citation statements)

References 43 publications

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“…These nitrides could be interesting as SERS materials, since they are non-stoichiometric and, hence, their composition and optical properties can be tuned [194,195]. Moreover, TiN is characterized by a good biocompatibility, hardness and thermal stability (melting point ~2900 °C) [196,197,198]. The use of TiN as a SERS material has been investigated in few papers, for example, Zhu et al [199] studied the SERS response of Rhodamine6G on several nitride thin films (TiN, AlN and TiAlN); and Juneja et al [196] calculated the enhancing properties of ZrN and TiN dimers, comparing the results with analogous structures made of gold.…”

Section: Main Factors Affecting the Sers Enhancement And Its Expermentioning

confidence: 99%

A Review on Surface-Enhanced Raman Scattering

et al. 2019

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Surface-enhanced Raman scattering (SERS) has become a powerful tool in chemical, material and life sciences, owing to its intrinsic features (i.e., fingerprint recognition capabilities and high sensitivity) and to the technological advancements that have lowered the cost of the instruments and improved their sensitivity and user-friendliness. We provide an overview of the most significant aspects of SERS. First, the phenomena at the basis of the SERS amplification are described. Then, the measurement of the enhancement and the key factors that determine it (the materials, the hot spots, and the analyte-surface distance) are discussed. A section is dedicated to the analysis of the relevant factors for the choice of the excitation wavelength in a SERS experiment. Several types of substrates and fabrication methods are illustrated, along with some examples of the coupling of SERS with separation and capturing techniques. Finally, a representative selection of applications in the biomedical field, with direct and indirect protocols, is provided. We intentionally avoided using a highly technical language and, whenever possible, intuitive explanations of the involved phenomena are provided, in order to make this review suitable to scientists with different degrees of specialization in this field.

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Section: Main Factors Affecting the Sers Enhancement And Its Expermentioning

confidence: 99%

A Review on Surface-Enhanced Raman Scattering

et al. 2019

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“…28,29 Based on the bulk material characteristics, they are also predicted to be chemically stable for operation under corrosive conditions. 30 They have high melting points compared to metals making them compatible with the high temperature fabrication processes. 31 Refractory transition metal nitrides have been shown to have high photothermal efficiency, thermal stability, and catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photothermal Properties of UV-Plasmonic Group IV Transition Metal Carbide Nanoparticles

Margeson

Monfared

Dasog

2023

Preprint

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Refractory nanostructures are low-cost and chemically and thermally robust alternatives to noble metal based plasmonic materials. Transition metal nitrides have received much of the attention lately, but there has been less emphasis on closely related non-layered carbide counterparts. In this work, plasmonic group IV transition metal carbide (TiC, ZrC, and HfC) nanostructures were prepared using a facile magnesiothermic reduction method which yielded phase pure product. TiC, ZrC and HfC with rock salt crystal structure and an average particle size of 24, 31, and 42 nm, respectively were obtained by reacting corresponding metal oxide, magnesium, and biochar in solid-state. Calculations performed using finite element method predicted these group IV carbide nanostructures to have localized surface plasmon resonance in the UV region between 150 175 nm. The photothermal transduction efficiency of each carbide was explored to further verify the plasmonic behavior. HfC was found to have the highest photothermal transduction efficiency (73%), followed by ZrC (69%), and then TiC (60%) at 365 nm.

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“…Using MSE method, energy transfer interactions between the molecules in the vicinity of plasmonic nanoparticles was calculated by Shishodia. [15][16][17][18] He gave a formalism that separates the geometrical and dielectric properties and can be extended to the arbitrary combination of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

A systematic study of Surface Plasmon Enhanced Electric Field in Nanoparticle Dimers for UV Plasmonics

Juneja¹,

Agrwal²,

Seth³

2022

Macromolecular Symposia

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Surface plasmon mediated electric field enhancement in the dimer arrangement of Al, Ag and, Au nanoparticles using multipole spectral expansion (MSE) approach has been studied. MSE method has flexibility and simplicity in extending the approach to treat an arbitrary arrangement of nanoparticles by solving corresponding general eigenvalue problem. The field enhancement behavior of Al, Ag, and Au nanoparticle dimers has been investigated, covering UV-VIS spectral range. The role of embedding medium, particle-particle separation, and the metal type were studied. The resonance wavelength showed the red shift with increasing the dielectric constant of the ingrained material. The red shift with increasing particle size and the dielectric constant of embedded or ingrained medium has been studied. This study was used to design plasmonic nanoparticle dimer with resonant optical response at crucial wavelengths in UV-VIS spectral region.

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Surface plasmon amplification in refractory transition metal nitrides based nanoparticle dimers

Cited by 28 publications

References 43 publications

A Review on Surface-Enhanced Raman Scattering

A Review on Surface-Enhanced Raman Scattering

Synthesis and Photothermal Properties of UV-Plasmonic Group IV Transition Metal Carbide Nanoparticles

A systematic study of Surface Plasmon Enhanced Electric Field in Nanoparticle Dimers for UV Plasmonics

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