Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Photoluminescence: Applications01:14

Photoluminescence: Applications

487
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...
487
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

593
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...
593
Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

2.3K
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
Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

740
Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
740

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Role of Transport Polarity in Transient Electroluminescence of Two-Dimensional TMDC Semiconductors.

Nanomaterials (Basel, Switzerland)·2026
Same author

Exploring the pro-angiogenic constituents of Lagopsis supina and their mechanisms via transcriptome analysis, molecular docking and RT-qPCR validation.

Fitoterapia·2026
Same author

Comparative perioperative outcomes of robot-assisted versus video-assisted thoracoscopic mediastinal tumor resection: a propensity score-matched analysis.

Journal of cardiothoracic surgery·2026
Same author

High Performance Full-Color Room-Temperature Phosphorescence Polymer Microspheres and Their Applications.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Toward an evolvable digital twin: a knowledge-driven architecture for optical manufacturing.

Optics express·2026
Same author

Coordinatively improving polymeric phosphorescence lifetime and quantum yield via triplet exciton modulation.

Nature communications·2026

相关实验视频

Updated: Sep 12, 2025

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

9.0K

通过X-聚合增强的室温光学从terphenylamine.

Shunnan Jiang1, Yushuang Zhang1, Lijie Yi1

  • 1School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China.

ACS applied materials & interfaces
|August 5, 2025
PubMed
概括

引入甲基和受约束的配置增强有机室温光 (RTP) 材料. 这项研究详细介绍了分子结构和聚合如何影响RTP,从而导致更长的发光寿命.

关键词:
在X聚合中,X聚合是有机室温光生物光.关于分子聚合的规定.结构 - 聚合依赖性结构 - 性能依赖性依赖性

更多相关视频

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
08:51

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

9.7K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

2.9K

相关实验视频

Last Updated: Sep 12, 2025

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

9.0K
Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
08:51

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

9.7K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

2.9K

科学领域:

  • 材料科学 材料科学 材料科学
  • 摄影化学的使用.
  • 有机化学 有机化学

背景情况:

  • 有机室温光 (RTP) 材料表现出独特的光发光.
  • 分子聚合对RTP性能的影响是显著的,但尚未完全理解.
  • 了解结构-聚合关系是设计先进的RTP材料的关键.

研究的目的:

  • 调查有机RTP材料性能对分子结构和聚合的详细依赖.
  • 阐明分子聚合调节RTP属性的机制.
  • 确定设计策略,以增强有机材料中长时间持久的发光.

主要方法:

  • 用不同的替代剂 (甲基,甲氧基,三基) 合成特胺 (TPA) 衍生物.
  • 分子配置的系统变化,从受约束到不受约束.
  • 光发光性质的表征,专注于RTP寿命和强度.
  • 使用结构和光谱方法分析分子包装和聚合状态 (例如X聚合).

主要成果:

  • 引入甲基组和受约束配置显著延长了RTP寿命 (68-410毫秒).
  • 分子配置的逐步约束导致TPA,PhCz和ICz的RTP寿命逐渐增加.
  • 大量,不受约束的组 (甲基,三基) 缩短了RTP的寿命或导致火.
  • 正规的X聚合和刚性分子包装被电子捐赠组和受约束的配置所青.
  • 无序的安排和多重的形状是不受约束的庞大群体的结果.

结论:

  • 分子结构和聚合关键控制有机RTP性能.
  • 有限制的配置和特定的替代物 (如甲基) 促进X聚合和刚性包装,增强RTP.
  • X聚合增强了分子间的电荷转移,并限制了分子运动,改善了系统间的交叉,并抑制了持续的RTP发射的非辐射衰变.