Enhanced upconversion emissions in Ho3+/Yb3+ codoped tellurite glasses containing silver NPs

Qi, Yawei; Zhou, Yaxun; Wu, Libo; Yang, Fengjing; Peng, Shengxi; Zheng, Shichao; Yin, Deshun

doi:10.1016/j.jnoncrysol.2014.05.014

Cited by 13 publications

(6 citation statements)

References 34 publications

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“…More recently, coupling noble metal species with REI has been developed as a valuable route to improve the emissions of REI . Malta et al.…”

Section: Introductionmentioning

confidence: 99%

“…first reported that the significant enhancement of Eu 3+ emissions in fluoroborate glasses was attributed to the local field effect (LFE) induced by the surface plasmon resonance (SPR) of noble silver nanoparticles (Ag NPs) . Many subsequent investigations further demonstrate the enhancement effect of Ag NPs on REI luminescence . However, some reported the emission enhancements of REI were achieved by a typical energy transfer (ET) from very small molecule‐like, nonplamonic silver particles or isolated Ag + cations .…”

Section: Introductionmentioning

confidence: 99%

“…More recently, coupling noble metal species with REI has been developed as a valuable route to improve the emissions of REI. 3,[8][9][10] Malta et al first reported that the significant enhancement of Eu 3+ emissions in fluoroborate glasses was attributed to the local field effect (LFE) induced by the surface plasmon resonance (SPR) of noble silver nanoparticles (Ag NPs). 11 Many subsequent investigations further demonstrate the enhancement effect of Ag NPs on REI luminescence.…”

Section: Introductionmentioning

confidence: 99%

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Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn²⁺/Si Codoping

et al. 2015

J. Am. Ceram. Soc.

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Currently, coupling noble metal species with rare-earth cations (REI) in amorphous materials has attracted persistent attention, owing to the significant rise in the emission intensity and nonlinear optical response, which allow various potential applications in photoelectric fields. However, the primary investigations are focused on Au-and Ag-doped systems, and there are few systematic reports concerning the interaction between REI and the different oxidation states of copper so far. Herein, we demonstrated the evolution of copper oxidation valences from Cu 2+ to Cu + , and then to Cu 0 (Cu NPs), and the corresponding effects on Tb 3+ emissions in borate glasses were systematically investigated by modifying glass structure and Sn 2+ /Si codoping. With increasing the ratio of B 2 O 3 to Li 2 O, enhancement of reduction efficiency of Cu 2+ to Cu + was observed. Impressively, the ns 2 -type Sn 2+ emission centers not only generate efficient sensitizers for Tb 3+ but also lead to efficient reduction in Cu 2+ to Cu + . Based on absorption/transmittance, photoluminescence excitation/emission, and time-resolved decay spectra, the interplay mechanisms between Tb 3+ and the different valences of copper were discussed in detail.

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“…More recently, coupling noble metal species with REI has been developed as a valuable route to improve the emissions of REI . Malta et al.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn²⁺/Si Codoping

et al. 2015

J. Am. Ceram. Soc.

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“…The plasmon peaks in tellurite glasses are often overshadowed due to overlap of large optical density of Er 3+ ions[14,16,34].…”

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confidence: 99%

Enhanced luminescence from silver nanoparticles integrated Er3+-doped boro-tellurite glasses: Impact of annealing temperature

Mahraz

Sahar

Ghoshal

2015

Journal of Alloys and Compounds

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“…The strong absorption cross-section related to the surface plasmon excitation in noble-metal nanoparticles and/or the large local field enhancement that is generated around the excited nanoparticle make it possible to use such metal nanoparticles for the enhancement of the luminescence intensity emitted by rareearth ions when present in close vicinity of plasmonics nanoparticles. 2,6,7 Trivalent erbium ion (Er 3þ ), as one of the most important active ions in the rare-earth family due to its favorable energy level structure, has been exploited in a wide variety of glasses for applications in solid-state lasers and optical amplifiers. Moreover, they have attracted much interest in optoelectronic and photonic applications because the emission in the telecommunication optical window is due to the 4f $ 4f transitions, not only the 4 I 13/2 !…”

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confidence: 99%

Silver nanoparticles enhanced luminescence properties of Er3+ doped tellurite glasses: Effect of heat treatment

Fares¹,

Elhouichet

Gelloz

et al. 2014

Journal of Applied Physics

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Articles you may be interested inEnergy transfer characteristics of silicate glass doped with Er3+, Tm3+, and Ho3+ for 2μm emission Tellurite glasses doped Er 3þ ions and containing Silver nanoparticles (Ag NPs) are prepared using melt quenching technique. The nucleation and growth of Ag NPs were controlled by a thermal annealing process. The X-ray diffraction pattern shows no sharp peak indicating an amorphous nature of the glasses. The presence of Ag NPs is confirmed from transmission electron microscopy micrograph. Absorption spectra show typical surface plasmon resonance (SPR) band of Ag NPs within the 510-550 nm range in addition to the distinctive absorption peaks of Er 3þ ions. The Judd-Ofelt (J-O) intensity parameters, oscillator strengths, spontaneous transition probabilities, branching ratios, and radiative lifetimes were successfully calculated based on the experimental absorption spectrum and the J-O theory. It was found that the presence of silver NPs nucleated and grown during the heat annealing process improves both of the photoluminescence (PL) intensity and the PL lifetime relative to the 4 I 13/2 ! 4 I 15/2 transition. Optimum PL enhancement was obtained after 10 h of heat-treatment. Such enhancements are mainly attributed to the strong local electric field induced by SPR of silver NPs and also to energy transfer from the surface of silver NPs to Er 3þ ions, whereas the quenching is ascribed to the energy transfer from Er 3þ ions to silver NPs. Using the Mc Cumber method, absorption cross-section, calculated emission cross-section, and gain cross-section for the 4 I 13/2 ! 4 I 15/2 transition were determined and compared for the doped and co-doped glasses. The present results indicate that the glass heat-treated for 10 h has good prospect as a gain medium applied for 1.53 lm band broad and high-gain erbium-doped fiber amplifiers. V C 2014 AIP Publishing LLC. [http://dx.

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Enhanced upconversion emissions in Ho3+/Yb3+ codoped tellurite glasses containing silver NPs

Cited by 13 publications

References 34 publications

Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn²⁺/Si Codoping

Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn²⁺/Si Codoping

Enhanced luminescence from silver nanoparticles integrated Er3+-doped boro-tellurite glasses: Impact of annealing temperature

Silver nanoparticles enhanced luminescence properties of Er3+ doped tellurite glasses: Effect of heat treatment

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Enhanced upconversion emissions in Ho3+/Yb3+ codoped tellurite glasses containing silver NPs

Cited by 13 publications

References 34 publications

Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn2+/Si Codoping

Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn2+/Si Codoping

Enhanced luminescence from silver nanoparticles integrated Er3+-doped boro-tellurite glasses: Impact of annealing temperature

Silver nanoparticles enhanced luminescence properties of Er3+ doped tellurite glasses: Effect of heat treatment

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Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn²⁺/Si Codoping

Evolution in the Oxidation Valences and Sensitization Effect of Copper Through Modifying Glass Structure and Sn²⁺/Si Codoping