Gd0.99Er0.01Al0.995Cr0.05O3における発光とエネルギー伝達過程について

F Mselmi1, Abir Hadded1, Hajer Souissi1

  • 1Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax 3000 Tunisia abir.hadded1994@gmail.com.

RSC advances
|August 27, 2025
PubMed
まとめ

この研究では,エルビウム (Er3+) とクロム (Cr3+) を添加したガドリウムアルミニウム酸化物 (GdAlO3) を合成した. この研究は,光発光に影響を与えるエネルギー伝達メカニズムを明らかにし,Cr3+イオンが赤色放射の鍵であることを示しています.

関連する概念動画

Photoluminescence: Applications01:14

Photoluminescence: Applications

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...
485
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
2.3K
Deactivation Processes: Jablonski Diagram01:25

Deactivation Processes: Jablonski Diagram

Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
880