Temperature Dependence of Photoluminescence from Silver Nanoparticles

Yeshchenko, Oleg A.; Bondarchuk, Illya S.; Losytskyy, Mykhaylo Yu.; Alexeenko, A. A.

doi:10.1007/s11468-013-9601-3

Cited by 20 publications

(26 citation statements)

References 53 publications

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“…3a-c, respectively. It has been reported earlier [26,27] that triangular-shaped nanoparticles exhibit enhanced PL emissions. Here also, as an typical example, we have compared the PL emission characteristics of spherical silver nanoparticles (as reported by us earlier in ref.…”

Section: Resultsmentioning

confidence: 80%

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Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

et al. 2015

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Research studies on plasmonic properties of triangular-shaped silver nanoparticles might lead to several interesting applications. However, in this work, triangularshaped silver nanoparticles have been synthesized by simple solvothermal technique and reported the effect of size on the electron-phonon scattering in the synthesized materials by analyzing their temperature-dependent photoluminescence (PL) emission characteristics. It has been observed that total integrated PL emission intensity is quenched by 33 % with the increase in temperature from 278 to 323 K. The observed decrease in PL emission intensity has been ascribed to the increase of electron-phonon scattering rate with the increase in temperature. The values of electron-phonon coupling strength (S) for synthesized samples have been evaluated by theoretical fitting of the experimentally obtained PL emission data. Smaller sized triangular nanoparticle has been found to exhibit stronger temperature dependence in PL emission, which strongly suggests that smaller sized triangular silver nanostructures have better electron-phonon coupling.

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Section: Resultsmentioning

confidence: 80%

“…So in the present study, we have considered only the effect of electron-phonon scattering with increase in temperature on PL quantum yield. However, the power of single-photon luminescence P(ω 1 ) [1,26] obtained from a metal nanoparticle excited with a photon of energy ħω exc is given by,…”

Section: Resultsmentioning

confidence: 99%

Observation of Size-Dependent Electron–Phonon Scattering and Temperature-Dependent Photoluminescence Quenching in Triangular-Shaped Silver Nanoparticles

et al. 2015

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“…Probably, the higher intensity of PL from rhodamine aggregates in sample with Au NPs can be explained as follows. The increase of the temperature leads to red-shift of SPR [31][32][33][34][35], i.e. to the shift towards the D l and C l bands.…”

Section: Resultsmentioning

confidence: 99%

“…The temperature effects on the SPR absorption band of metal NPs were studied by Kreibig [2,27] and Doremus [28,29], and the origin of temperature effects upon the SPR was analyzed by Mulvaney [30]. Recently, the influence of temperature on SPR in Ag, Au and Cu NPs at high temperatures was reported in our works [31][32][33][34] and the results of a similar study of Au-based plasmonic nanostructures at low temperatures were reported in Ref. [35], where appreciable red-shift and broadening of the SPR with increasing temperature were observed.…”

Section: Introductionmentioning

confidence: 95%

“…[36,37]. Recently, we reported the temperature dependence of the quantum yield of the PL from silver [38] and copper [39] NPs. Another interesting SP related thermal effect is that noble metal NPs, when illuminated at a wavelength close to their SP resonance, can serve as highly efficient localized heat sources at the nanometer-length scale [40][41][42].…”

Section: Introductionmentioning

confidence: 99%

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