Ajuste del color en nanocristales de conversión ascendente dopados con iones lantánidos

JiaYue Zhang1, Xinyu Wang1, Yuxin Jin1

  • 1Key Lab of In-Fiber Integrated Optics of Ministry of Education of China, College of Physics and Optoelectronic Engineering, Harbin Engineering University Harbin 150001 P.R. China liulu@hrbeu.edu.cn zhangjianzhong@hrbeu.edu.cn lby2565738163@163.com.

RSC advances
|January 12, 2026
PubMed
Resumen

Los nanocristales de conversión ascendente basados en lantánidos ofrecen colores sintonizables para diversas aplicaciones. Esta revisión destaca los avances recientes en la manipulación de estos nanomateriales para mejorar el rendimiento y ampliar su uso.

Videos de Conceptos Relacionados

Colors and Magnetism03:02

Colors and Magnetism

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...
13.9K
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...
988
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
30.5K