Up-conversion luminescence characteristics and temperature sensing of Y2O3: Ho3+/Yb3+ single crystal fiber

An, Ni; Ye, Linhua; Bao, Rui; Yue, Linhai; Wang, Ligang

doi:10.1016/j.jlumin.2019.116657

Cited by 39 publications

(15 citation statements)

References 41 publications

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“…The n values at 553 and 669 nm are ~1.73 and ~1.20 respectively, which are all between 1 and 2, indicating that the corresponding UCL are all two-photon processes. The experimentally measured value of n is not an integer and the value is smaller than 2, which is because of the cross-relaxation effect in the UC process and the energy loss caused by non-radiative transition [11], [29], [47].…”

Section: ) Pump Power Dependence Of Ucl Intensitymentioning

confidence: 95%

“…common systems that can achieve efficient UCL owing to the highly resonant energy-transfer between the sensitizer Yb 3+ and activator Ho 3+ ions. Under the 980 nm laser excitation, the Yb 3+ /Ho 3+ co-doped UCNPs usually emit bright green ( 2 F4, 5 S2 → 5 I8) and relatively weak red ( 5 F5 → 5 I8) UC emissions [1], [10], [29], [30], [37]. However, up to now, there are so few related report demonstrated on the flame-made Yb 3+ /Ho 3+ codoped UCNPs, leading to their UCL properties remaining also unclear.…”

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confidence: 99%

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Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y₂O₃:Yb³⁺/Ho³⁺ Nanoparticles

et al. 2022

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The synthesis of upconversion nanoparticles (UCNPs) by flame aerosol is of great significance to realize industrial large-scale production of UCNPs and develop nanotechnology further. Here, for the first time, we successfully fabricated the ultrasmall Y2O3:Yb 3+ /Ho 3+ UCNPs by a self-build swirl flame spray pyrolysis (SFSP) method with a high production rate of ~40 g  h -1 . These flame-made UCNPs are all pure cubic phases with an average ultrasmall size of ~14 nm. Excited by 980 nm laser, the synthesized UCNPs show bright green ( 2 F4, 5 S2 → 5 I8) and relatively weak red ( 5 F5 → 5 I8) upconversion luminescence (UCL). Based on the UCL spectra of Y2O3:Yb 3+ /Ho 3+ UCNPs, the optimal doping concentrations of 6 mol% Yb 3+ and 0.1 mol% Ho 3+ were determined to reach the most intense UCL. The dependence of UCL intensity and pump power was further analyzed, and it indicated that the green and red UCL are two-photon processes. In addition, the UCL properties with different synthesized conditions were also demonstrated. The UCL mechanism of these flame-made Y2O3:Yb 3+ /Ho 3+ UCNPs were illustrated in detail. Our results prove that industrial large-scale production of continuous one-step synthesis of UCNPs by flame aerosol technology is completely feasible and deserves further study. Index Terms-Photonic materials, synthesis and fabrication methods, luminiescence and fluorescence, optical properties of photonic materials I. INTRODUCTIONCNPs refer to the lanthanide-doped nanoparticles that can harvest and convert near-infrared low-energy photons into visible or ultraviolet high-energy photons to realize photon upconversion (UC), which are of broad applications in the fields of three-dimensional display, anticounterfeiting, laser materials, sensors, biological issues, and photovoltaics [1], [2]. Generally, the strategies of synthesizing UCNPs mainly focus on wet chemical routes, including hydrothermal [3]-[5], sol-gel [6]-[8], co-precipitation [9]-[11], thermal decomposition [12]-[14] and ion exchange method [15], [16]. Moreover, some newly emerging methods, such as laser ablation [17], [18], solid state reaction [19]-[22], and electrospinning [23], [24] are also used for fabricating the UCNPs. However, the UCNPs fabricated by these routes are always accompanied by complex chemical processes and harsh experimental conditions. In terms of the traditional wet This paragraph of the first footnote will contain the date on which you submitted your paper for review, which is populated by IEEE.

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Section: ) Pump Power Dependence Of Ucl Intensitymentioning

confidence: 95%

mentioning

confidence: 99%

Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y₂O₃:Yb³⁺/Ho³⁺ Nanoparticles

et al. 2022

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“…This was based on fluorescence lifetime and found applications in temperature monitors for microwave treatments and medium-voltage substations. This application for temperature sensing has been also successfully explored in work from Zhejiang University (Hangzhou, Zhejiang, China), reporting the growth of Y 2 O 3 :Er 3+ /Yb 3+ [73] and Y 2 O 3 :Ho 3+ /Yb 3+ [74] single-crystal fibers with up-conversion luminescent characteristics.…”

Section: Materials For Photonic and Optical Applicationsmentioning

confidence: 99%

“…Visible light emission, highly efficient, solid-state, light-emitting materials allowing the fabrication of devices with low energy consumption, high brightness, and environmentally friendly characteristics, are presently of great interest for many researchers [52]. Thus, the LFZ or LHPG technique has allowed obtaining a wide production of phosphors and luminescent materials in the form of doped single crystals or polycrystalline and eutectic materials [52,73,74,[112][113][114][115] in a fast manner. Despite this vast production, considering that this section is focused on single crystals applied as laser media or other specific optical engineering applications, we will not delve into a topic that would probably need a chapter by itself.…”

Section: Materials For Photonic and Optical Applicationsmentioning

confidence: 99%

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

et al. 2020

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The Laser Floating Zone (LFZ) technique, also known as Laser-Heated Pedestal Growth (LHPG), has been developed throughout the last several decades as a simple, fast, and crucible-free method for growing high-crystalline-quality materials, particularly when compared to the more conventional Verneuil, Bridgman–Stockbarger, and Czochralski methods. Multiple worldwide efforts have, over the years, enabled the growth of highly oriented polycrystalline and single-crystal high-melting materials. This work attempted to critically review the most representative advancements in LFZ apparatus and experimental parameters that enable the growth of high-quality polycrystalline materials and single crystals, along with the most commonly produced materials and their relevant physical properties. Emphasis will be given to materials for photonics and optics, as well as for electrical applications, particularly superconducting and thermoelectric materials, and to the growth of metastable phases. Concomitantly, an analysis was carried out on how LFZ may contribute to further understanding equilibrium vs. non-equilibrium phase selectivity, as well as its potential to achieve or contribute to future developments in the growth of crystals for emerging applications.

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“…Ho 3+ doped optical temperature sensing materials use non‐thermally coupled energy levels (NTCL) emission lights to avert the predicament of distinguishing strongly overlapping emission peaks. Moreover, its green and red lights (coming from the 5 F 4 / 5 S 2 → 5 I 8 and 5 F 5 → 5 I 8 transitions, severally) both are strong and easy to be detected, which leads Ho 3+ to receiving a lot of attention [16–20] …”

Section: Introductionmentioning

confidence: 99%

Preparation and Research on the Optical Temperature Sensing Properties of Ho³⁺ doped NaY(MoO₄)₂ Phosphors

Tian

Meng

Zhang³

et al. 2021

ChemistrySelect

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In this work, NaY(MoO4)2: 5 % Ho3+ were synthesized successfully with sodium citrate as chelating agent by hydrothermal method. As X‐ray diffraction graphs showed, the samples were body‐centered quadrilateral structure. The Field‐emission Scanning Electron Microscope pictures demonstrated the morphology of the experimental samples changed with different amounts of sodium citrate. The temperature‐dependent emission spectra (293‐563 K) revealed different thermal quenching trends of the emission peaks from different energy levels (5F4/5S2→5I7, 5F4/5S2→5I8 and 5F5→5I8). The two groups of fluorescence intensity ratios (FIR) could be applied to temperature measurement (5F4/5S2→5I8 to 5F5→5I8 and 5F4/5S2→5I7 to 5F5→5I8). As sodium citrate content increased, the maximum values of relative sensitivity of the samples increased, among which the greatest one was 0.316 % K−1 (Cit3−/Re3+=2). In addition, the FIR had good repeatability in heating, cooling and heating again process that indicated the temperature sensing properties of the sample were steady. Since it was possible to characterize temperature with two sets of FIR, the samples could play a self‐calibrating character. Summing up the above, the NaY(MoO4)2 : 5 % Ho3+ phosphors were promising optical temperature sensing materials.

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Up-conversion luminescence characteristics and temperature sensing of Y2O3: Ho3+/Yb3+ single crystal fiber

Cited by 39 publications

References 41 publications

Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y₂O₃:Yb³⁺/Ho³⁺ Nanoparticles

Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y₂O₃:Yb³⁺/Ho³⁺ Nanoparticles

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

Preparation and Research on the Optical Temperature Sensing Properties of Ho³⁺ doped NaY(MoO₄)₂ Phosphors

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Up-conversion luminescence characteristics and temperature sensing of Y2O3: Ho3+/Yb3+ single crystal fiber

Cited by 39 publications

References 41 publications

Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y2O3:Yb3+/Ho3+ Nanoparticles

Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y2O3:Yb3+/Ho3+ Nanoparticles

Laser Floating Zone Growth: Overview, Singular Materials, Broad Applications, and Future Perspectives

Preparation and Research on the Optical Temperature Sensing Properties of Ho3+ doped NaY(MoO4)2 Phosphors

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Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y₂O₃:Yb³⁺/Ho³⁺ Nanoparticles

Aerosol Flame Synthesis and Manipulating Upconversion Luminescence of Ultrasmall Y₂O₃:Yb³⁺/Ho³⁺ Nanoparticles

Preparation and Research on the Optical Temperature Sensing Properties of Ho³⁺ doped NaY(MoO₄)₂ Phosphors