Energy transfer and frequency upconversion in Yb3+–Er3+-doped PbO-GeO2 glass containing silver nanoparticles

Kassab, L.R.P.; Bomfim, F.A.; Martinelli, J.R.; Wetter, Niklaus Ursus; Neto, Jonas Jakutis; Araújo, Cid B. de

doi:10.1007/s00340-008-3249-2

Cited by 127 publications

(56 citation statements)

References 12 publications

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“…[12][13][14] In the past years the synthesis and characterization of heavy-metal oxide glasses doped with RE ions and containing metallic NPs were reported for a large variety of glasses. [1][2][3][4][5][6][7][8][15][16][17][18][19][20][21][22][23] Intensification of Stokes and anti-Stokes luminescence due to nucleation of silver or gold NPs was investigated in tellurite and germanate glasses doped with RE ions under various excitation conditions. 8,[15][16][17][18][19][20][21][22] Enhancement of electronic transitions in the visible and in the near infrared region was observed and increase in the PL intensity up to Ϸ1000% was reported.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][15][16][17][18][19][20][21][22][23] Intensification of Stokes and anti-Stokes luminescence due to nucleation of silver or gold NPs was investigated in tellurite and germanate glasses doped with RE ions under various excitation conditions. 8,[15][16][17][18][19][20][21][22] Enhancement of electronic transitions in the visible and in the near infrared region was observed and increase in the PL intensity up to Ϸ1000% was reported. 8,20 In the case of tellurite 19 and germanate 20 glasses containing gold NPs enhancement of Eu 3+ magnetic-dipole ͑MD͒ related transitions was observed accompanied by changes in the relative amplitude of the MD transition ͑ 5 D 0 -7 F 1 ͒ in comparison with the electric-dipole ͑ED͒ transition ͑ 5 D 0 -7 F 2 ͒.…”

Section: Introductionmentioning

confidence: 99%

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Influence of metallic nanoparticles on electric-dipole and magnetic-dipole transitions of Eu3+ doped germanate glasses

Kassab¹,

Silva²,

Araújo³

2010

Journal of Applied Physics

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Anomalous second ferromagnetic phase transition as a signature of spinodal decomposition in Fe-doped GeTe diluted magnetic semiconductor Appl. Phys. Lett. 99, 202508 (2011) Crystallization behavior and high temperature magnetic phase transitions of Nb-substituted FeCoSiBCu nanocomposites Appl. Phys. Lett. 99, 192506 (2011) Fabrication and magnetic properties of Fe and Co co-doped ZrO2 AIP Advances 1, 042138 (2011) Magnetic structure and magnetic properties of Nd1xNaxMnO3 compounds J. Appl. Phys. 110, 093906 (2011) Effect of magnetic field and pressure on charge-orbital ordering in Pr(Sr1xCax)2Mn2O7 (x=0.4 and 0.9) single crystals J. Appl. Phys. 110, 093905 (2011) Additional information on J. Appl. Phys. Luminescence properties of Eu 3+ doped germanate glasses containing either silver or gold nanoparticles ͑NPs͒ were investigated for excitation at 405 nm. Enhanced emissions and luminescence quenching of the Eu 3+ transitions in the range from 570 to 720 nm were observed for samples having various concentrations of metallic NPs. Electric-dipole and magnetic-dipole transitions that originate from the Eu 3+ level 5 D 0 exhibit large enhancement due to the presence of the metallic NPs. The results suggest that the magnetic response of rare-earth doped metal-dielectric composites at optical frequencies can be as strong as their electric response due to the confinement of the optical magnetic field.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of metallic nanoparticles on electric-dipole and magnetic-dipole transitions of Eu3+ doped germanate glasses

Kassab¹,

Silva²,

Araújo³

2010

Journal of Applied Physics

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“…Heavy metal oxide-based glass hosts with low phonon energy (resonance vibration of the matrix) are more favorable to diminish the multiphonon relaxation and increase the upconversion efficiency of RE ions [12,13]. Among the heavy metal oxide glasses, Sb 2 O 3 -based systems have captured our attention for photonic, particularly surface-plasmonenhanced luminescence applications due to its two unique properties.…”

Section: Introductionmentioning

confidence: 99%

Core-shell Au-Ag nanoparticles in dielectric nanocomposites with plasmon-enhanced fluorescence: A new paradigm in antimony glasses

Som

Karmakar

2009

Nano Res.

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The nano era demands the synthesis of new nanostructured materials, if possible by simplified techniques, with remarkable properties and versatile applications. Here, we demonstrate a new single-step reproducible melt-quench methodology to fabricate core-shell bimetallic (Au 0 Ag 0 ) nanoparticles (28 89 nm) embedded glasses (dielectrics) by the use of a new reducing glass matrix, K 2 O B 2 O 3 Sb 2 O 3 (KBS) without applying any external reducing agent or multiple processing steps. The surface plasmon resonance (SPR) band of these nanocomposites embedded in KBS glass is tunable in the range 554-681 nm. More remarkably, taking advantage of the selective reduction capability of Sb 2 O 3 , this single-step methodology is used to fabricate inter-metallic: rare-earth ions co-embedded (Au Ag:Sm 3+ ) dielectric (glass)-based-dnanocomposites and study the effect of enhanced local fi eld on the red upconversion fl uorescence of Sm 3+ ions at 636 nm. The enhancement is found to be about 2 folds. This single-step in-situ selective reduction approach can be used to fabricate a variety of hybrid-nanocomposite devices for laser based applications (see supplementary information).

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“…Specifically, enhancement in the infrared-to-visible UC process in Er 3+ -Yb 3+ codoped PbO-GeO 2 glass containing silver NPs was reported in Ref. 20. Increased green-red luminescence was obtained by the simultaneous exploitation of the enhanced local field due to the metallic NPs and the ET from excited Yb 3+ to Er 3+ ions.…”

Section: Introductionmentioning

confidence: 95%

“…Another possibility is the nucleation of metallic nanoparticles ͑NPs͒ inside the matrix and this was demonstrated under different conditions. [14][15][16][17][18][19][20] In germanate glasses, enhancement in PL by silver NPs was reported for PbO-GeO 2 glasses doped with Pr 3+ ͑Ref. 17͒ and Er 3+ .…”

Section: Introductionmentioning

confidence: 99%

Frequency upconversion luminescence from Yb+3–Tm+3 codoped PbO–GeO2 glasses containing silver nanoparticles

Assumpção¹,

Silva²,

Kassab

et al. 2009

Journal of Applied Physics

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Infrared-to-visible and infrared-to-infrared frequency upconversion processes in Yb 3+ -Tm 3+ doped PbO-GeO 2 glasses containing silver nanoparticles ͑NPs͒ were investigated. The experiments were performed by exciting the samples with a diode laser operating at 980 nm ͑in resonance with the Yb 3+ transition 2 F 7/2 → 2 F 5/2 ͒ and observing the photoluminescence ͑PL͒ in the visible and infrared regions due to energy transfer from Yb 3+ to Tm 3+ ions followed by excited state absorption in the Tm 3+ ions. The intensified local field in the vicinity of the metallic NPs contributes for enhancement in the PL intensity at 480 nm ͑Tm 3+ : 1 G 4 → 3 H 6 ͒ and at 800 nm ͑Tm 3+ : 3 H 4 → 3 H 6 ͒.

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Energy transfer and frequency upconversion in Yb3+–Er3+-doped PbO-GeO2 glass containing silver nanoparticles

Cited by 127 publications

References 12 publications

Influence of metallic nanoparticles on electric-dipole and magnetic-dipole transitions of Eu3+ doped germanate glasses

Influence of metallic nanoparticles on electric-dipole and magnetic-dipole transitions of Eu3+ doped germanate glasses

Core-shell Au-Ag nanoparticles in dielectric nanocomposites with plasmon-enhanced fluorescence: A new paradigm in antimony glasses

Frequency upconversion luminescence from Yb+3–Tm+3 codoped PbO–GeO2 glasses containing silver nanoparticles

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