Related Experiment Video
Updated: Aug 24, 2025
07:24
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
17.5K
Organic Holmium(III) Complexes as a Potential Bright Emitter in Thin Films
Chen Lyu1, Junjie Zhang2, Filippo Boi3
1Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, P.R. China.
The Journal of Physical Chemistry Letters
|October 21, 2022
Summary
Researchers developed a new material using Holmium(III) ions and organic ligands for efficient 2 μm optical emission. This material shows promise for applications requiring specific light wavelengths.
Area of Science:
- Materials Science
- Photochemistry
- Optical Engineering
Background:
- Developing materials with specific optical emission properties is crucial for advanced technologies.
- Holmium(III) ions are known for their luminescence, but efficient sensitization is challenging.
Purpose of the Study:
- To investigate Holmium(III) ions incorporated with organic ligands for efficient ∼2 μm optical emission.
- To demonstrate a potential sensitization scheme for enhanced luminescence.
Main Methods:
- Characterization of optical emission using steady and time-resolved photoluminescence.
- Empirical calculation of Förster energy transfer rate.
- Modeling of excited state dynamics with an ideal organic chromophore.
Main Results:
- Successful incorporation of Holmium(III) ions with an organic ligand.
- Observation of ∼2 μm optical emission.
- Demonstration of an efficient sensitization scheme via Förster energy transfer.
Conclusions:
- The developed material is a promising candidate for ∼2 μm emission applications.
- The material can be fabricated in thin films.
- The study provides insights into sensitization mechanisms for rare-earth ion luminescence.
Related Concept Videos
03:02Colors and Magnetism
12.2K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
12.2K
01:14Photoluminescence: Applications
472
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...
472