Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Electron Configuration of Multielectron Atoms03:26

Electron Configuration of Multielectron Atoms

65.6K
The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...
65.6K
Photoluminescence: Applications01:14

Photoluminescence: Applications

1.2K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.2K
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current01:14

Diamagnetic Shielding of Nuclei: Local Diamagnetic Current

1.5K
An applied magnetic field causes the electrons present in the molecule to circulate, setting up a local diamagnetic current within the molecule. The local diamagnetic current arising from circulating sigma-bonding electrons induces a magnetic field, Blocal that opposes the applied magnetic field, B0. The effective magnetic field experienced by these nuclei is given by the difference between the applied and local magnetic fields in a phenomenon called local diamagnetic shielding. Essentially,...
1.5K
π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.8K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.8K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

1.1K
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
1.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Near-infrared stress memory emitters enable delayed impact visualization in illuminated environments.

Nature communications·2026
Same author

Sudden Arrhythmic Death Presenting with Convulsive Syncope In A Young Man With Severe Coronary Atherosclerosis And Hyperthyroidism: A Case Report.

Current cardiology reviews·2026
Same author

Calcium peroxide nanoplatform-mediated cancer immunotherapy enhancement: current advances and perspective.

PeerJ·2026
Same author

Electronics with switchable flexibility for 3D conforming neural interfaces.

Science advances·2026
Same author

Combination of Ophiopogonin D, Ginsenoside Rg1, and Ginsenoside Rg3 ameliorates idiopathic pulmonary fibrosis via inhibiting type 2 alveolar epithelial cell senescence and epithelial-mesenchymal transition.

Naunyn-Schmiedeberg's archives of pharmacology·2026
Same author

Self-recoverable mechanoluminescence in simple oxides: Al<sub>2</sub>O<sub>3</sub>:Cr.

Light, science & applications·2026

Related Experiment Video

Updated: Feb 26, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

15.9K

Energy Migration Upconversion in Ce(III)-Doped Heterogeneous Core-Shell-Shell Nanoparticles.

Xian Chen1,2, Limin Jin3,4, Tianying Sun1,5

  • 1Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China.

Small (Weinheim an Der Bergstrasse, Germany)
|July 20, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel core-shell-shell nanostructure for efficient photon upconversion. This breakthrough expands the emission spectrum, enabling tunable ultraviolet lasing with broad bandwidth and long lifetime.

Keywords:
cerium upconversioncore−shell nanoparticlesenergy migrationtunable ultraviolet lasing

More Related Videos

Triplet Fusion Upconversion Nanocapsule Synthesis
08:36

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

3.0K
Low-energy Cathodoluminescence for OxyNitride Phosphors
07:03

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

11.2K

Related Experiment Videos

Last Updated: Feb 26, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
13:51

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

15.9K
Triplet Fusion Upconversion Nanocapsule Synthesis
08:36

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

3.0K
Low-energy Cathodoluminescence for OxyNitride Phosphors
07:03

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

11.2K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Photonics

Background:

  • Developing new materials and structures is crucial for expanding the emission spectrum in upconversion research.
  • Photon upconversion enables the conversion of lower-energy photons into higher-energy ones, with applications in various fields.

Purpose of the Study:

  • To design and synthesize a novel heterogeneous core-shell-shell nanostructure for efficient photon upconversion.
  • To achieve efficient ultraviolet (UV) emission from Ce3+ ions via a Gd-mediated energy migration process.
  • To explore the potential for tunable UV lasing applications.

Main Methods:

  • Synthesis of a NaYbF4:Gd/Tm@NaGdF4@CaF2:Ce core-shell-shell nanostructure.
  • Utilizing CaF2 as a host material to tune the excitation frequency of Ce3+ ions.
  • Investigating energy transfer pathways involving Yb3+, Tm3+, Gd3+, and Ce3+ ions.

Main Results:

  • Demonstrated efficient photon upconversion in Ce3+ ions through a Gd-mediated energy migration process.
  • Achieved efficient UV emission from Ce3+ following near-infrared excitation.
  • Observed broad bandwidth and long lifetime for the Ce3+ upconversion emission.

Conclusions:

  • The developed core-shell-shell nanostructure enables efficient UV emission through a novel energy transfer mechanism.
  • The material's properties offer significant potential for tunable UV lasing.
  • This research contributes to the advancement of upconversion materials and their applications.