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相关概念视频

Photoluminescence: Fluorescence and Phosphorescence01:23

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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...
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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...
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相关实验视频

Updated: Jul 9, 2025

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响应多刺激的多色固态发光,通过依赖于NH的可切换键调整.

Rui Zhang1, Li-Hua He1, Sui-Jun Liu1

  • 1Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P.R. China. gzchenjinglin@126.com.

Dalton transactions (Cambridge, England : 2003)
|December 5, 2023
PubMed
概括

这项研究揭示了在一个新的双铜复合体中的多色发光背后的机制. 材料 材料 的材料.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 摄影化学的使用.
  • 协调化学 协调化学

背景情况:

  • 响应刺激的发光材料对于先进的应用至关重要.
  • 了解它们的响应机制是合理设计的关键.
  • 多色发光提供了增强的功能.

研究的目的:

  • 为了研究一个新的双铜 (I) 复合体的多刺激响应的多色固态发光.
  • 阐明机色主义和蒸汽色主义的基本机制.
  • 为设计新刺激响应发光材料提供见解.

主要方法:

  • 合成和表征二铜 (I) 复合物及其化形式.
  • 在不同的刺激下 (研磨,加热,溶剂蒸汽) 调查固态发光特性.
  • 使用光谱和晶体学方法分析结构变化和键相互作用.

主要成果:

  • 双铜 (I) 复合体表现出多刺激响应的多色发光.
  • 机械染色与bmptzH-NH和酸盐离子在研磨时中断的键有关.
  • 蒸发色是由于涉及dppa-NH和溶剂分子的动态形成和破裂的键而产生的.

结论:

  • 这项研究阐明了二铜复合体中机色和气色的不同机制.
  • 这些发现突显了可切换的键,特别是N-H组在控制发光中的作用.
  • 这项工作为设计新型,可调节的发光材料提供了宝贵的指导,这些材料对多种刺激有反应.