Oscillatory size dependence of the surface plasmon linewidth in metallic nanoparticles

Molina, Rafael A.; Weinmann, Dietmar; Jalabert, Rodolfo A.

doi:10.1103/physrevb.65.155427

Cited by 80 publications

(111 citation statements)

References 33 publications

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“…The factors L and L ⊥ in Eqs. (29) and (30) are the longitudinal and transverse components of the geometrical factor, respectively.…”

Section: Particular Casesmentioning

confidence: 99%

“…To fit our calculations to the TDLDA calculations for the Na cluster presented in Ref. 29, we choose though, R min = R dB /2. As can be seen in Fig.…”

Section: A Plasmon Linewidth In a General Casementioning

confidence: 99%

“…The damping of surface plasmon resonances in MNs has been well studied both experimentally [12][13][14][15][16][17][18][19][20][21][22][23][24] and theoretically [25][26][27][28][29][30][31][32][33] . Usually, both the bulk and the surface damping mechanisms play an important role in the * email: ngrigor@bitp.kiev.ua surface plasmon decay.…”

Section: Introductionmentioning

confidence: 99%

“…Within the framework of the kinetic approach, we found that the the surface plasmon linewidth exhibits the oscillations as a function of the nanoparticle size, shape, and light frequency. We will demonstrate how they correspond to the oscillations detected earlier [28][29][30][31] in numerical calculations based on the time dependent local density approximation.…”

Section: Introductionmentioning

confidence: 99%

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Resonance plasmon linewidth oscillations in spheroidal metallic nanoparticle embedded in a dielectric matrix

Grigorchuk

2012

Journal of Applied Physics

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The kinetic approach is applied to calculate oscillations of a surface plasmon linewidth in a spheroidal metal nanoparticle embedded in any dielectric media. The principal attention is focused on the case, when the free electron path is much greater than the particle size. The linewidth of the plasmon resonance as a function of the particle radius, shape, dielectric constant of the surrounding medium, and the light frequency is studied in detail. It is found that the resonance plasmon linewidth oscillates with increasing both the particle size and the dielectric constant of surrounding medium. The main attention is paid to the electron surface-scattering contribution to the plasmon decay. All calculations the plasmon resonance linewidth are illustrated by the example of the Na nanoparticles with different radii. The results obtained in the kinetic approach are compared with the known ones from other models. The role of the radiative damping is discussed as well.

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“…The factors L and L ⊥ in Eqs. (29) and (30) are the longitudinal and transverse components of the geometrical factor, respectively.…”

Section: Particular Casesmentioning

confidence: 99%

“…To fit our calculations to the TDLDA calculations for the Na cluster presented in Ref. 29, we choose though, R min = R dB /2. As can be seen in Fig.…”

Section: A Plasmon Linewidth In a General Casementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Resonance plasmon linewidth oscillations in spheroidal metallic nanoparticle embedded in a dielectric matrix

Grigorchuk

2012

Journal of Applied Physics

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“…by coupling to the internal degrees of freedom of the electron gas) and by electron-electron or electron-phonon collisions. The damping of the plasmon was observed experimentally in gold nanoparticles [14] and was studied theoretically in several works [15,16,17].…”

Section: Introductionmentioning

confidence: 99%

Collective Electron Dynamics in Metallic and Semiconductor Nanostructures

Manfredi

Hervieux

Yin

et al. 2009

Advances in the Atomic-Scale Modeling of Nanosystems and Nanostructured Materials

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Metal Nanoparticle Photocatalysts: Synthesis, Characterization, and Application

Han

Martens

Waclawik

et al. 2018

Part & Part Syst Charact

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than photons spend travelling at light speed in vacuum. [4] The NP-light interaction can produce both a high concentration of energetic electrons and a strong electric field at the NPs' surfaces. The lifetime of the coherent electron oscillation due to LSPR effect is ≈5-100 fs, [5] and can dephase through three pathways (depicted in Figure 1): (1) elastic radiative reemission of photons, (2) nonradiative Landau damping, causing the excitation of energetic electrons and holes in the metal particles, and (3) the interaction of excited surface plasmons with unpopulated adsorbate acceptor states. [5] All three plasmon decay processes can excite adsorbates present at the surface of the NPs. Energy transfer by the first decay pathway usually requires UV photons to cause excitation of the internal electronic transition of an adsorbate, [6] and requires large-sized particles to make the process dominant (larger than 40 nm for Au NPs as an example [1] ). Moreover, the low efficiency of photoemission during the process excludes the radiative energy transfer from being a major contributor of plasmonic enhancement. [7] Pathways (2) and (3) are the nonradiative decay processes, which are dominant for small NPs. In process (2), plasmon decay by Landau damping, where the energy is converted to a single electron/ hole exciton, occurs ≈10 fs after the initial plasmon excitation. [8] The excited electrons can interact with other electrons through Coulombic inelastic scattering (electron-electron scattering), couple to phonon modes, thereby heating the metal lattice, and to the surroundings (electron-phonon energy relaxation). [9] When metal NPs adsorb chemicals, the addition of adsorbates to the surface of the plasmonic nanostructures can induce the third ultrafast (≈5 fs) dephasing pathway, which is called chemical interface damping (CID). [4] In the CID process, the decay of a resonant plasmon causes direct excitation of an electron to an unoccupied adsorbate acceptor state. As shown in Figure 2, the hot electrons generated by light excitation are injected into the lowest unoccupied molecular orbital (LUMO) of an adsorbed molecule directly, and the injection lowers the energy of the formed transient anions by weakening the chemical bonds of the adsorbate. [10] Chemical transformation can then occur if the deposited energy is enough to overcome the activation barrier for the dissociation of the adsorbed molecule. Considering the lifetime of vibrational levels of adsorbates on metals is around 1-10 ps, [9] subsequent electron injections can occur before the molecular vibration has fully dissipated.Metal nanoparticles (NPs) have emerged as a kind of new photocatalyst to drive various chemical reactions by visible-light irradiation. A distinct advantage of metal NP photocatalysts is that their light absorption is not limited to a certain wavelength but instead they are able to utilize a broad range of wavelengths, constituting a large fraction of the solar spectrum. Metal NPs like gold, silver, and copper NPs can strongly absorb vis...

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Oscillatory size dependence of the surface plasmon linewidth in metallic nanoparticles

Cited by 80 publications

References 33 publications

Resonance plasmon linewidth oscillations in spheroidal metallic nanoparticle embedded in a dielectric matrix

Resonance plasmon linewidth oscillations in spheroidal metallic nanoparticle embedded in a dielectric matrix

Collective Electron Dynamics in Metallic and Semiconductor Nanostructures

Metal Nanoparticle Photocatalysts: Synthesis, Characterization, and Application

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