相关实验视频

Updated: Jan 17, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
07:03

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

11.1K

一种新的红色 Ba3La2W2O12:Eu3+具有强烈的D0-7F4过渡和优异的热稳定性为白色LED

Fei Wang1,2,3, Huihui Chen4

  • 1Key Laboratory of Traffic Information and Safety of Anhui Higher Education Institutes, Anhui Sanlian University, Hefei 230601, People's Republic of China. wangfchina@163.com.

Dalton transactions (Cambridge, England : 2003)
|September 19, 2025
PubMed
概括

基于Ba3La2W2O12:Eu3+的新型红色发射显示出优异的热稳定性和高量子效率,显著改善转换白色发光二极管 (pc-WLED).

更多相关视频

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials07:12

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

3.0K
Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode10:41

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

9.2K

相关概念视频

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...
1.0K
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...
3.5K
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...
14.0K
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

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...
1.3K