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

Energy Bands in Solids01:01

Energy Bands in Solids

2.5K
Isolated atoms have discrete energy levels that are well described by the Bohr model. And, it quantifies the energy of an electron in a hydrogen atom as En. Higher quantum numbers 'n' yield less negative, closer electron energy levels.
 Band Formation:
When atoms are brought close together, as in a solid, these discrete energy levels begin to split due to the overlap of electron orbitals from adjacent atoms. This split occurs because of the Pauli exclusion principle, which states...
2.5K
Quantum Numbers02:43

Quantum Numbers

54.4K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
54.4K
Colors and Magnetism03:02

Colors and Magnetism

14.7K
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...
14.7K
Valence Bond Theory02:42

Valence Bond Theory

11.7K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.7K
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

2.4K
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
2.4K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

High-Concentration Alcohol Generation in Bipolar Membrane CO Electrolyzer.

Angewandte Chemie (International ed. in English)·2025
Same author

Co-electroreduction of CO and glyoxal promotes C<sub>3</sub> products.

Nature chemistry·2025
Same author

Direct Electrosynthesis of C<sub>3+</sub> Hydrocarbons from CO<sub>2</sub> via Size-Controlled Nickel Nanoislands on a Carbon Support.

Journal of the American Chemical Society·2025
Same author

ZnSnAuBiCuO-Derived Electrocatalysts Rich in Grain Boundaries for CO Reduction to <i>n</i>-Propanol.

Journal of the American Chemical Society·2025
Same author

Dual-Chronoamperometry Drift Correction for Electrochemical Sensors.

ACS sensors·2025
Same author

Computational Discovery of New C─C Coupling Electrocatalysts for CO<sub>2</sub> Electroreduction.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same journal

Daily briefing: 'Cyborg' cockroaches breathe underwater with printed suit.

Nature·2026
Same journal

China boosts prestigious grants for young scientists - will it ease competition?

Nature·2026
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Apr 7, 2026

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications
07:42

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications

Published on: January 22, 2019

11.9K

Sólidos de punto cuántico en perovskita

Zhijun Ning1, Xiwen Gong1, Riccardo Comin1

  • 1Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario M5S 1A4, Canada.

Nature
|July 17, 2015
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores han desarrollado un nuevo método para crear

Más Videos Relacionados

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

8.0K
Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
10:41

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

9.3K

Videos de Experimentos Relacionados

Last Updated: Apr 7, 2026

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications
07:42

Inkjet Printing All Inorganic Halide Perovskite Inks for Photovoltaic Applications

Published on: January 22, 2019

11.9K
High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

8.0K
Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode
10:41

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

9.3K

Área de la Ciencia:

  • Ciencias de los materiales
  • Nanotecnología
  • Optoelectrónica y sus derivados

Sus antecedentes:

  • La heteroepitaxia permite dispositivos electrónicos avanzados mediante la alineación de películas cristalinas en sustratos.
  • La coherencia cristalina es clave para las estructuras cuánticas y las nuevas combinaciones de materiales.
  • Las perovskitas organohalídeas y los puntos cuánticos son materiales optoelectrónicos prometedores.

Objetivo del estudio:

  • Para demostrar la síntesis de la fase de solución de los heterocristales de punto cuántico de perovskita alineados epitaxialmente.
  • Investigar las propiedades optoelectrónicas y la dinámica de transferencia de carga dentro de estos heterocristales.
  • Diseñar una nueva plataforma para la optoelectrónica infrarroja procesada por solución.

Principales métodos:

  • Combinación solución-fase de perovskitas organohalídeos y puntos cuánticos coloidales.
  • Microscopía electrónica de transmisión (TEM) y difracción de electrones para el análisis estructural.
  • Caracterización de las propiedades optoelectrónicas y eficiencia de transferencia de portadores de carga.

Principales resultados:

  • Se han producido con éxito heterocristales de "puntos en una matriz" alineados epitaxialmente hasta 60 nm.
  • Se observó una transferencia eficiente (80%) de fotoelectrones y agujeros de perovskita a puntos cuánticos.
  • Se ha demostrado la emisión de luz brillante de los puntos cuánticos infrarrojos a través de la matriz de perovskita.

Conclusiones:

  • La coherencia cristalina a escala atómica en los heterocristales conduce a propiedades optoelectrónicas notables.
  • Las propiedades combinadas de las perovskitas y los puntos cuánticos permiten una emisión eficiente de luz infrarroja.
  • Este trabajo presenta una nueva plataforma para el avance de la optoelectrónica infrarroja procesada por solución.