Investigation of upconversion luminescence in Er^3+/Yb^3+ co-doped Nb_2O_5-based glasses prepared by aerodynamic levitation method

Zhang, Minghui; Wen, Haiqin; Yu, Jiahui; Ai, Fei; Yu, Huimei; Pan, Xiuhong; Shao, Hui; Tang, Meibo; Gai, Lijun

doi:10.1364/ome.7.003222

Cited by 10 publications

(8 citation statements)

References 29 publications

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“…And then the laser would be closed and the melt could be quenched into glass. The detail of the glass preparation has also been introduced in the previous research [18]. Finally, bulk glass spheres with ∼3 mm diameter were successfully prepared.…”

Section: Methodsmentioning

confidence: 99%

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Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Zhang¹,

Wen²,

Pan³

et al. 2020

Mater. Res. Express

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Aerodynamic levitation method has been successfully used to prepare new Er 3+ /Yb 3+ co-doped La 2 O 3 -Nb 2 O 5 -Ta 2 O 5 glasses. 980 nm laser can be used to excite the glass for strong absorption of Yb 3+ ions. The glass show high infrared transmittance of ∼80%. Moreover, the OH − concentration is very low with the value of ∼7 ppm, indicating excellent infrared transmission. The glass performs good optical properties with refractive index of near 2.3. The plane sweeping of EDS reveals that Er 3+ and Yb 3+ are distributed homogeneously in the glass. Strong down-conversion luminescence centered at 1530 nm has been achieved from the glass excited at 980 nm. The near-infrared emission is due to the transition of 4 I 13/2 → 4 I 15/2 in Er 3+ ions. After fitting the decay curve, the lifetime of the near-infrared emission can be decided to be ∼5.517 ms. Such long lifetime is very helpful for rare earth ions to achieve strong emission. Figure 5. The schematic diagram of luminescence process.

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Section: Methodsmentioning

confidence: 99%

“…As one of containerless processing methods, aerodynamic levitation has been used to prepare some types of novel glasses successfully [15,16]. Moreover, new glass materials containing Nb 2 O 5 prepared by aerodynamic levitation method are began to be researched in the view of optical properties, luminescence, etc [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Zhang¹,

Wen²,

Pan³

et al. 2020

Mater. Res. Express

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“…Finally, glass spheres with a diameter of ~3 mm were successfully prepared. The preparation was described in detail in the previous study [8,14,15]. The resulted glass spheres were then polished by two sides to be 1.5 mm thickness wafers for later measurements.…”

Section: Methodsmentioning

confidence: 99%

“…Novel Nb 2 O 5 -based glasses perform low phonon energy (~735 cm −1 ), high refractive index, good thermal properties, and high transparency, indicating that it can be a favorable candidate for strong upconversion luminescence from Tm 3+ /Yb 3+ ion pair [8,9,10]. This new glass is prepared without adding any glass network formers.…”

Section: Introductionmentioning

confidence: 99%

Study on Upconversion and Thermal Properties of Tm3+/Yb3+ Co-Doped La2O3-Nb2O5-Ta2O5 Glasses

et al. 2018

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The effect of Yb3+ ions on upconversion luminescence and thermal properties of Tm3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses has been studied. Glass transition temperature is around 740 °C, indicating high thermal stability. The effect of Yb3+ ions on the thermal stability is not obvious. Both the glass forming ability and the upconversion luminescence first increase and then decrease with the increase of Yb3+ ions. The glasses perform low glass forming ability with ΔT around 55 °C. Blue and red emissions centered around 477, 651, and 706 nm are obtained at the excitation of 976 nm laser. The upconversion luminescence mechanism is energy transfer from Yb3+ to Tm3+ mixed with two- and three- photon processes. The thermal kinetic Differential Thermal Analysis (DTA)-analysis indicates that the average activation energy first increases and then decreases with the increase of Yb3+ ions. This result can be introduced in order to improve upconversion luminescence of glasses by crystallization in the future. Tm3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses with good upconversion and thermal properties show promising applications in solid-state laser, optical temperature sensing.

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“…[18][19][20] A similar band gap is observed in Nb 2 O 5 which is an n-type semiconductor. 21 It is broadly utilized in the elds of gas sensing, 22 glass manufacturing, 23 and electrochemical energy storage, 24 but limited reports are available on Nb 2 O 5 as a photocatalyst and its related photochemical properties. 21,25,26 As Nb 2 O 5 exhibits similar semiconducting properties to those of TiO 2 , this material has great potential to replace the widely studied titania.…”

Section: Introductionmentioning

confidence: 99%

Enhanced photocatalysis and bacterial inhibition in Nb₂O₅via versatile doping with metals (Sr, Y, Zr, and Ag): a critical assessment

et al. 2019

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Investigation of upconversion luminescence in Er^3+/Yb^3+ co-doped Nb_2O_5-based glasses prepared by aerodynamic levitation method

Cited by 10 publications

References 29 publications

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Study on Upconversion and Thermal Properties of Tm3+/Yb3+ Co-Doped La2O3-Nb2O5-Ta2O5 Glasses

Enhanced photocatalysis and bacterial inhibition in Nb₂O₅via versatile doping with metals (Sr, Y, Zr, and Ag): a critical assessment

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Investigation of upconversion luminescence in Er^3+/Yb^3+ co-doped Nb_2O_5-based glasses prepared by aerodynamic levitation method

Cited by 10 publications

References 29 publications

Study on optical properties and luminescence of Er3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses prepared by aerodynamic levitation

Study on optical properties and luminescence of Er3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses prepared by aerodynamic levitation

Study on Upconversion and Thermal Properties of Tm3+/Yb3+ Co-Doped La2O3-Nb2O5-Ta2O5 Glasses

Enhanced photocatalysis and bacterial inhibition in Nb2O5via versatile doping with metals (Sr, Y, Zr, and Ag): a critical assessment

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Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Study on optical properties and luminescence of Er³⁺/Yb³⁺ co-doped La₂O₃-Nb₂O₅-Ta₂O₅ glasses prepared by aerodynamic levitation

Enhanced photocatalysis and bacterial inhibition in Nb₂O₅via versatile doping with metals (Sr, Y, Zr, and Ag): a critical assessment