Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Stereoisomerism02:52

Stereoisomerism

13.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
13.8K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

30.4K
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...
30.4K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

47.9K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
47.9K
Properties of Enantiomers and Optical Activity02:24

Properties of Enantiomers and Optical Activity

21.0K
It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...
21.0K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

47.5K
sp3d and sp3d 2 Hybridization
47.5K
Ionic Crystal Structures02:42

Ionic Crystal Structures

16.7K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
16.7K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Graphene oxide-polydopamine membranes with controlled interlayer spacing.

Nature·2026
Same author

Partial Phase Remixing of Segregated Mixed Halide Perovskite Nanocrystals Induced by an Instant Change in an External Electric Field.

The journal of physical chemistry letters·2026
Same author

Radical-omics reveals the hydrogen-abstraction pathway of isoprene oxidation.

Nature communications·2026
Same author

Formation of Abundant Quantum Emitters in 2D Lead-Halide Perovskites.

Nano letters·2026
Same author

Microenvironment-Driven Charge Tuning at Microdroplet Interfaces Dictates Criegee Intermediate Reactivity.

The journal of physical chemistry letters·2026
Same author

Recent Advances of Organic Room Temperature Phosphorescence for Biological Applications.

Advanced materials (Deerfield Beach, Fla.)·2026

Video Experimental Relacionado

Updated: Jan 7, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

8.9K

Heteroestructura óptica en un cristal orgánico bidimensional

Kan Liao1,2, Junran Zhang1, Xiang-Long Yu3

  • 1State Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials, School of Physical and Mathematical Sciences, Nanjing Tech University, Nanjing, China.

Nature communications
|December 29, 2025
PubMed
Resumen

Los investigadores crearon una heteroestructura óptica intrínseca en una sola nanolámina orgánica. Este avance permite mejorar la fluorescencia a través de una transición localizada de estado sólido, allanando el camino para dispositivos fotónicos avanzados.

Palabras clave:
heteroestructura ópticananoláminas orgánicasfluorescencia mejoradatransición de estado sólidofotónica

Más Videos Relacionados

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

18.3K
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

10.0K

Videos de Experimentos Relacionados

Last Updated: Jan 7, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

8.9K
Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
07:24

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

18.3K
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

10.0K

Área de la Ciencia:

  • Ciencia de Materiales
  • Fotónica
  • Electrónica Orgánica

Sus antecedentes:

  • Las heteroestructuras ópticas son cruciales para la fotónica integrada de próxima generación.
  • Crear heterogeneidad en sistemas de un solo componente es un desafío significativo.
  • Los métodos existentes suelen implicar la unión de materiales disimilares.

Objetivo del estudio:

  • Informar sobre una heteroestructura óptica intrínseca en una nanolámina orgánica uniforme.
  • Investigar el mecanismo detrás de las propiedades ópticas espacialmente heterogéneas.
  • Establecer una nueva plataforma para heteroestructuras ópticas en materiales orgánicos.

Principales métodos:

  • Fabricación de nanoláminas orgánicas uniformes.
  • Caracterización mediante análisis estructurales y ópticos multiescala.
  • Modelado teórico para comprender las interacciones subyacentes.

Principales resultados:

  • Demostró una fluorescencia mejorada en la zona interior de la nanolámina.
  • Identificó una transición de estado sólido espacialmente localizada en la capa superior central.
  • Reveló que la transición transforma el monocristal en una estructura gemela fuera del plano, mejorando la eficiencia radiativa.

Conclusiones:

  • Estableció un sistema de un solo componente para heteroestructuras ópticas intrínsecas.
  • El fenómeno observado está impulsado por interacciones moleculares-sustrato y intermoleculares competitivas.
  • Abre vías para explorar fenómenos fotónicos y diseño de materiales gobernados por la dinámica estructural.