Articles with "nayf4 yb3" as a keyword



Photo by benjaminlehman from unsplash

Phthalocyanine‐Conjugated Upconversion NaYF4:Yb3+/Er3+@SiO2 Nanospheres for NIR‐Triggered Photodynamic Therapy in a Tumor Mouse Model

Sign Up to like & get
recommendations!
Published in 2017 at "ChemMedChem"

DOI: 10.1002/cmdc.201700508

Abstract: Photodynamic therapy (PDT) has garnered immense attention as a minimally invasive clinical treatment modality for malignant cancers. However, its low penetration depth and photodamage of living tissues by UV and visible light, which activate a… read more here.

Keywords: er3 sio2; yb3 er3; nayf4 yb3;
Photo by robbie36 from unsplash

Efficient near-infrared photocatalysts based on NaYF4:Yb3+,Tm3+@NaYF4:Yb3+,Nd3+@TiO2 core@shell nanoparticles

Sign Up to like & get
recommendations!
Published in 2019 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2018.12.174

Abstract: Abstract In this work, we fabricated NaYF4:Yb3+,Tm3+@NaYF4:Yb3+,Nd3+@TiO2 (Tm@Nd@TiO2) core@shell nanoparticles and investigated their near-infrared (NIR) photocatalytic activities. Comparing to traditional TiO2 based upconversion (UC) photocatalysts (i.e., NaYF4:Yb3+,Tm3+@TiO2, named Tm@TiO2), Tm@Nd@TiO2 exhibits enhanced photocatalytic activity under… read more here.

Keywords: yb3 tm3; nayf4 yb3; photocatalytic activity; tio2 ... See more keywords
Photo by universalkalakar from unsplash

The dynamic variation of upconversion luminescence dependent on shell Yb3+ contents in NaYF4: Yb3+,Tm3+@NaYF4: Yb3+,Er3+ nanoparticles

Sign Up to like & get
recommendations!
Published in 2022 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2021.162067

Abstract: Abstract In this study, a series of NaYF4:Yb3+, Tm3+@NaYF4:Yb3+, Er3+ core@shell nanocrystals with different sensitizer contents in the shell were synthesized by a facile solvothermal method to investigate the impact of sensitizer Yb3+ on the… read more here.

Keywords: er3; luminescence; upconversion luminescence; upconversion ... See more keywords
Photo by introspectivedsgn from unsplash

Controllable planar electrodeposition of NaYF4: Yb3+, Er3+ thin films with efficient upconverting fluorescence

Sign Up to like & get
recommendations!
Published in 2019 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2019.116580

Abstract: Abstract The lanthanide doped NaYF4, one of the most efficient upconverting materials, which shows great potential in the applications of future optoelectronic devices. Although there are many progress on the synthesis and performance modulations of… read more here.

Keywords: nayf4 yb3; thin films; yb3 er3; er3 thin ... See more keywords
Photo by vishnumaiea from unsplash

Semiconductor plasmon enhanced monolayer upconversion nanoparticles for high performance narrowband near-infrared photodetection

Sign Up to like & get
recommendations!
Published in 2019 at "Nano Energy"

DOI: 10.1016/j.nanoen.2019.04.064

Abstract: Abstract Employing lanthanide doped upconversion nanoparticles (UCNPs) as near-infrared absorbing photoactive materials is a feasible conception for constructing high efficient and stable narrowband wavelength-selective photodetectors, but limited by its upconversion luminescence efficiency. Herein, we experimentally… read more here.

Keywords: semiconductor; csxwo3; nayf4 yb3; near infrared ... See more keywords
Photo by mnzoutfits from unsplash

Facile synthesis of near-infrared-excited NaYF4:Yb3+, Tm3+ nanoparticles for label-free detection of dopamine in biological fluids.

Sign Up to like & get
recommendations!
Published in 2018 at "Talanta"

DOI: 10.1016/j.talanta.2017.11.042

Abstract: Rare-earth-doped upconversion nanoparticles (UCNPs) behaved advantages such as non-autofluorescence, environment-friendly synthetic route, low cost and simple detection procedures. In addition, the UCNPs show unique upconvering optical property of converting low-energy infrared photons to high-energy visible… read more here.

Keywords: detection; yb3 tm3; label free; biological fluids ... See more keywords
Photo by javardh from unsplash

Upconverting Lanthanide Fluoride Core@Shell Nanorods for Luminescent Thermometry in the First and Second Biological Windows: β-NaYF4:Yb3+- Er3+@SiO2 Temperature Sensor.

Sign Up to like & get
recommendations!
Published in 2019 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.9b00445

Abstract: Upconverting core@shell type β-NaYF4:Yb3+-Er3+@SiO2 nanorods have been obtained by a two-step synthesis process, which encompasses hydrothermal and microemulsion routes. The synthesized nanomaterial forms stable aqueous colloids and exhibits a bright dual-center emission (λex = 975… read more here.

Keywords: er3; core shell; temperature; yb3 er3 ... See more keywords
Photo by drew_hays from unsplash

A simple neridronate-based surface coating strategy for upconversion nanoparticles: highly colloidally stable 125I-radiolabeled NaYF4:Yb3+/Er3+@PEG nanoparticles for multimodal in vivo tissue imaging.

Sign Up to like & get
recommendations!
Published in 2017 at "Nanoscale"

DOI: 10.1039/c7nr05456d

Abstract: In this report, monodisperse upconversion NaYF4:Yb3+/Er3+ nanoparticles with superior optical properties were synthesized by the oleic acid-stabilized high-temperature co-precipitation of lanthanide chlorides in octadec-1-ene as a high-boiling organic solvent. To render the particles with biocompatibility… read more here.

Keywords: peg nanoparticles; er3 peg; yb3 er3; nayf4 yb3 ... See more keywords
Photo by fabiooulucas from unsplash

Fluorescence temperature sensing of NaYF4:Yb3+/Tm3+@NaGdF4:Nd3+/Yb3+ nanoparticles at low and high temperatures

Sign Up to like & get
recommendations!
Published in 2022 at "Nanotechnology"

DOI: 10.1088/1361-6528/ac84e4

Abstract: NaYF4:Yb3+/Tm3+@NaGdF4:Nd3+/Yb3+ upconversion nanoparticles were prepared using a solvothermal method, and the effects of key factors such as the content of sensitiser Nd3+ and Yb3+ on their luminescence properties were investigated. The nanoparticles are homogeneous in… read more here.

Keywords: nayf4 yb3; nd3 yb3; temperature; yb3 ... See more keywords
Photo by javardh from unsplash

Tunable concentration-dependent upconversion and downconversion luminescence in NaYF4: Yb3+, Er3+@ NaYF4: Yb3+, Nd3+ core-shell nanocrystals for a dual-mode anti-counterfeiting imaging application.

Sign Up to like & get
recommendations!
Published in 2022 at "Optics letters"

DOI: 10.1364/ol.452089

Abstract: Lanthanide-doped luminescent nanocrystals display both upconversion luminescence (UCL) and downconversion luminescence (DCL) properties, which offer potential applications in the second near-infrared window (NIR-II) images and biology sensors. Both UCL and DCL are sensitive to concentrations… read more here.

Keywords: core shell; concentration; yb3 nd3; yb3 ... See more keywords
Photo from wikipedia

Improvement in Luminescence Intensity of β-NaYF4: 18%Yb3+, 2%Er3+@β-NaYF4 Nanoparticles as a Result of Synthesis in the Presence of Stearic Acid

Sign Up to like & get
recommendations!
Published in 2022 at "Nanomaterials"

DOI: 10.3390/nano12030319

Abstract: The synthesis of upconverting nanoparticles (NPs) is crucial for their spectroscopic properties and further applications. Reducing the size of materials to nano-dimensions usually decreases emission intensity. Therefore, scientists around the world are trying to improve… read more here.

Keywords: presence; synthesis; stearic acid; intensity ... See more keywords