Upconversion Luminescence Response of a Single YVO4:Yb, Er Particle [PDF]
Micromachines, 2023 We present the results of the luminescence response studies of a single YVO4:Yb, Er particle of 1-µm size. Yttrium vanadate nanoparticles are well-known for their low sensitivity to surface quenchers in water solutions which makes them of special ...
Dmitry K. Zharkov +6 more
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Upconversion Luminescence of NaYF4:Ln3+ Nanoparticles on Gold Nanorod Array with Dual-Wavelength Excitation [PDF]
NanomaterialsPlasmonic nanostructures have been widely employed to improve upconversion luminescence performance; however, their impact on excitation pathways under multi-wavelength excitation is not yet fully understood.
Haoyang Chen +7 more
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Mechanisms of Upconversion Luminescence of Er3+-Doped NaYF4 via 980 and 1530 nm Excitation [PDF]
Nanomaterials, 2021 To date, the mechanisms of Er3+ upconversion luminescence via 980 and 1530 nm excitation have been extensively investigated; however, based on discussions, they either suffer from the lack of convincing evidence or require elaborated and time-consuming ...
Yu Liu +6 more
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Defect-Mediated Energy Transfer Mechanism by Modulating Lattice Occupancy of Alkali Ions for the Optimization of Upconversion Luminescence [PDF]
NanomaterialsThe performance optimization of photoluminescent (PL) materials is a hot topic in the field of applied materials research. There are many different crystal defects in photoluminescent materials, which can have a significant impact on their optical ...
Rongyao Gao +4 more
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Internal OH− induced cascade quenching of upconversion luminescence in NaYF4:Yb/Er nanocrystals [PDF]
Light: Science & Applications, 2021 Exponential relationship between upconversion luminescence intensity and internal OH- content obtained through the combination of quantitative control of the defect, advanced spectroscopy and theoretical model simulation.
Yansong Feng +6 more
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Effect of the Temperature of NaYF4 : Er,Yb Upсonversion Particles on the Formation of Luminescence [PDF]
Известия Саратовского университета. Новая серия: Физика, 2020 The intensity of upconversion luminescence depends nonlinearly on the excitation intensity. The aim of this work is to study the effect of the temperature of NaYF4:Er,Yb upconversion particles on the dependence of the luminescence intensity on the ...
Sagaidachnaya, Elena Aleksandrovna +1 more
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Upconversion Luminescent Humidity Sensors Based on Lanthanide-Doped MOFs
Chemosensors, 2022 Lanthanide-doped metal-organic frameworks (Y/Yb/Er-MOF) were synthesized by a low-cost solvothermal method. The obtained Y/Yb/Er-MOF shows the cooperative upconversion luminescence of Yb3+ and upconversion luminescence of Er3+ (Yb3+-sensitized ...
Zhuo Wang +5 more
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Ultra-stable near-infrared Tm3+-doped upconversion nanoparticles for in vivo wide-field two-photon angiography with a low excitation intensity [PDF]
Journal of Innovative Optical Health Sciences, 2019 Two-photon luminescence with near-infrared (NIR) excitation of upconversion nanoparticles (NPs) is of great importance in biological imaging due to deep penetration in high-scattering tissues, low auto-luminescence and good sectioning ability ...
Wen Liu, Runze Chen, Sailing He
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A Facile Approach for the Ligand Free Synthesis of Biocompatible Upconversion Nanophosphors
Frontiers in Chemistry, 2022 Upconversion nanophosphors, particles that can absorb low energy radiation and emit high energy light through multi-photon absorption processes, have gained augmented attention in recent years.
Elizabeth Shiby +2 more
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Cailiao gongcheng, 2021 Tb3+ and Yb3+ co-doped Y(PO3)3 upconversion luminescence phosphors were prepared by coprecipitation method. The structure and optical properties of the as-synthesized Y(PO3)3: Tb3+,Yb3+ samples were investigated by XRD, SEM, FI-IR and upconversion ...
LI Hui-ling +6 more
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