Search
Search Results
-
Do** induced morphology, crystal structure, and upconversion luminescence evolution: from Na3ScF6:Yb/Er/Y to NaYF4:Yb/Er/Sc nanocrystals
Impurity do** not only provides a fundamental approach to impart unique electronic, magnetic and optical properties to target nanomaterials, but...
-
Yb- and Er concentration dependence of the upconversion luminescence of highly doped NaYF4:Yb,Er/NaYF4:Lu core/shell nanocrystals prepared by a water-free synthesis
High sensitizer and activator concentrations have been increasingly examined to improve the performance of multi-color emissive upconversion (UC)...
-
Analysis of the NaYF4:Yb3+, Er3+ nanocrystals: up-conversion luminescence, crystal structure and morphology influenced by the dopant concentration and annealing temperature
NaYF 4 :Yb 3+ ,Er 3+ nanocrystals were prepared using the combustion method. The samples were then annealed at 600 and 700°C for 2 h, respectively, to...
-
Effect of excitation condition and Mn2+ do** on the red-to-green emission ratio in NaYF4:Er3+/Yb3+ phosphors
Rare earth ions doped up-conversion luminescent materials have attracted massive attention owing to their unique nonlinear optical properties of...
-
Multiband emission from single β-NaYF4(Yb,Er) nanoparticles at high excitation power densities and comparison to ensemble studies
Ensemble and single particle studies of the excitation power density ( P )-dependent upconversion luminescence (UCL) of core and core-shell β-NaYF 4 :Yb,E...
-
Synthesis and luminescence investigation of SBA-15/NaYF4:Yb/Er composites
One of the main approaches toward obtaining efficient up converting materials with practical applications involves the development of composites with...
-
Reverse microemulsion synthesis of mixed α and β phase NaYF4:Yb,Er nanoparticles: calcination induced phase formation, morphology, and upconversion emission
A novel “water-in-oil” type reverse microemulsion assisted synthesis detail on the formation of mixed cubic and hexagonal (α + β) phase NaYF 4 :Yb,Er...
-
Optical and magnetic properties of pure and Er, Yb-doped β-NaYF4 hexagonal plates for biomedical applications
The effects of Yb, Er on structural, optical, magnetic and biocompatibility of β-NaYF 4 compounds were examined. The pure and Yb, Er-doped β-NaYF 4 ...
-
Acetic acid-mediated rapid cubic-to-hexagonal (α–β) phase transformation for ultra-bright lanthanide-doped β-NaYF4 nano-bioprobes
Hexagonal-phase NaYF 4 (β-NaYF 4 ) has been acknowledged to be one of the most efficient do** hosts to prepare bright lanthanide-doped luminescent...
-
LiYF4:Yb/LiYF4 and LiYF4:Yb,Er/LiYF4 core/shell nanocrystals with luminescence decay times similar to YLF laser crystals and the upconversion quantum yield of the Yb,Er doped nanocrystals
We developed a procedure to prepare luminescent LiYF 4 :Yb/LiYF 4 and LiYF 4 :Yb,Er/LiYF 4 core/shell nanocrystals with a size of approximately 40 nm...
-
Nonlinear optical behavior of fluoride upconverter nanostructure loaded MoS2 heterostructures
Heterostructure of MoS 2 -upconverters (YF 3 : Yb, Er and NaYF 4 : Yb, Er) were synthesized by one-pot hydrothermal technique. The influence of host...
-
-
Enhancing effect of NaYF4: Yb, Tm on the photocatalytic performance of BiVO4 under NIR and full spectrum
In this study, NaYF 4 : Yb, Tm@BiVO 4 core–shell composites, and NaYF 4 : Yb, Tm/BiVO 4 mixture were synthesized. In this study, we compared the...
-
Upconversion nanoparticles: influence of the host lattices on crystallographic and luminescent properties
Ytterbium/erbium co-doped NaYF 4 , NaGdF 4 , CaF 2 , and LaF 3 upconversion nanoparticles (UCNPs) were synthesized by hydrothermal process. X-ray...
-
Enhanced visible–NIR-driven photocatalytic activities over NaYF4:Yb3+, Er3+/Ag2CrO4 composite
Wide spectral responsive photocatalysts are of great importance for making full use of solar energy and broad application in highly efficient...
-
Upconversion Spectral Modulation and Temperature Sensing of NaYF4:Yb3+/Ho3+/Tm3+/Gd3+ Nanorods with Resistance to Thermal Quenching
Upconversion (UC) nanomaterials are of interest to researchers because of their excellent photostability, effective quantum efficiency and optical...
-
Upconversion nanoparticles–based targeted imaging of MCF-7 breast cancer cells
Upconversion nanoparticles (UCNPs) doped with lanthanides are introduced as a significant tool in bioimaging applications. Here in, a comparative...
-
Biodegradable near-infrared-IIb lanthanide-doped inorganic nanoparticles with red up-conversion luminescence for bioimaging and photodynamic therapy
The near-infrared-II (NIR-II) lanthanide-doped inorganic nanoparticles (NPs) have received considerable attention because of their low photon...
-
808 nm triggered multifunctional UCNPs@PDA nanocomposites for temperature sensing and photothermal conversion
Multifunctional nanoparticles with marvelous temperature sensing and photothermal conversion are preferable in photothermal therapeutic applications....
-
Can NaYF4:Yb,Tm nanocrystals with multi-morphologies and various phases be synthesized by solvothermal process
The influencing factors of chelator, reaction times, and Yb 3+ /Tm 3+ -doped concentration on the formation of NaYF 4 :Yb,Tm crystals with various...
