Up-conversion photoluminescence properties and energy transfer process of Ho3+,Yb3+ Co-doped BaY2F8 fine fibers

Wang, Xinyu; Hou, Yuechun; Qu, Jiajun; Ding, Jun; Lin, Hai; Liu, Lina; Zhou, Yanyan; Zeng, Fanming; Li, Chun; Su, Zhong‐Min

doi:10.1016/j.jlumin.2019.03.055

Cited by 20 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…/Yb 3? co-doped systems has been reported by many authors [16][17][18][19][20]. Pandey et al have reported that the co-doping of Yb 3?…”

Section: Introductionmentioning

confidence: 79%

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

In this paper, Ho 3? /Yb 3? co-doped Sodium Gadolinium Fluoride (NaGdF 4 ) phosphors were synthesized by a facile and efficient hydrothermal method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy spectrum (EDS), and photoluminescence (PL). The results of XRD and SEM indicated that the prepared NaGdF 4 samples have the hexagonal structure and good orientation in the case of changing the concentration of Yb 3? . The results of pump power dependence of up-conversion intensity indicated that the energy transfer mechanism from Yb 3? to Ho 3? is a two-photon process. The energy transfer between Ho 3? and Yb 3? under 448 nm excitation was determined by PL spectra and fluorescence lifetimes. All the results proved that the doping of Yb 3? ions can effectively improve the upconversion luminescence of NaGdF 4 phosphors and achieve quantum cutting efficiency of up to 179.8%. Overall, NaGdF 4 :Ho 3? /Yb 3? have potential application in the field of optoelectronic materials.

show abstract

“…/Yb 3? co-doped systems has been reported by many authors [16][17][18][19][20]. Pandey et al have reported that the co-doping of Yb 3?…”

Section: Introductionmentioning

confidence: 79%

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…The data are normalized, and Figure 11a shows the fluorescence decay curves of the Li 2 CaGe 1-x Cr x O 4 crystals (x = 0.01, 0.03, 0.05, 0.07, and 0.1) by monitoring the 1200 nm emission with excitation at 980 nm. The decay curves measured for all samples can be fitted well by an exponential function expressed by the following equation [42]:…”

Section: Fluorescence Lifetime Analysismentioning

confidence: 99%

Investigation of the Structural and Luminescent Properties and the Chromium Ion Valence of Li2CaGeO4 Crystals Doped with Cr4+ Ions

et al. 2020

Self Cite

View full text Add to dashboard Cite

Herein, we report on the growth of Cr4+–Li2CaGeO4 crystals by the flux growth method from the flux of LiCl, as well as on the effect of doping Li2CaGeO4 with Cr4+ ions on the NIR region spectral properties and crystal structure. The results quantified the occupancy of Cr4+ in Ge4+ sites. The emission spectrum presented broad bands in the NIR region, i.e., 1000–1500 nm excited by 980 nm, with maximum peaks at 1200 nm at room temperature caused by the transition of 3T2→3A2 in Cr4+ ions. The lifetime decreased with the Cr4+ ion doping concentration, specifically from 14.038 to 12.224 ms. The chemical composition and the valence state of chromium in Li2CaGeO4 were analyzed using X-ray photoelectron spectroscopy, which showed that the chromium in Li2CaGeO4 was tetravalent and no trivalent chromium was found. Therefore, the Cr4+–Li2CaGeO4 crystal has a great potential and future in optical applications.

show abstract

“…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.…”

mentioning

confidence: 99%

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

et al. 2022

View full text Add to dashboard Cite

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.

show abstract

Up-conversion photoluminescence properties and energy transfer process of Ho3+,Yb3+ Co-doped BaY2F8 fine fibers

Cited by 20 publications

References 29 publications

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

Investigation of the Structural and Luminescent Properties and the Chromium Ion Valence of Li2CaGeO4 Crystals Doped with Cr4+ Ions

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

Contact Info

Product

Resources

About

Up-conversion photoluminescence properties and energy transfer process of Ho3+,Yb3+ Co-doped BaY2F8 fine fibers

Cited by 20 publications

References 29 publications

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

Up-conversion luminescence and near-infrared quantum cutting of Ho3+/Yb3+ co-doped hexagonal NaGdF4 phosphors

Investigation of the Structural and Luminescent Properties and the Chromium Ion Valence of Li2CaGeO4 Crystals Doped with Cr4+ Ions

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

Contact Info

Product

Resources

About

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