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相关概念视频

Photoluminescence: Applications01:14

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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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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.
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增强紫外线治愈的有机长时间持久发光材料

Yimeng Liang1, Man Liu1, Tiantian Wang1

  • 1Tianjin Key Laboratory of Molecular Optoelectronic Science (TJ-MOS), Key Laboratory of Organic Integrated Circuits of Ministry of Education, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.

Advanced materials (Deerfield Beach, Fla.)
|July 17, 2023
PubMed
概括

研究人员开发了一种简单的紫外线固化策略,以增强无形有机长持续发光材料 (OLPLMs). 这种方法创造了一个刚性环境,增强了用于防伪等应用的发光.

关键词:
紫外线固化UV固化打击假冒的行为.不具有破坏性的检测检测.有机长时间持久的发光.在室温光的光.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 有机电子 有机电子
  • 光物理学的光学物理学

背景情况:

  • 无形有机长时间持续发光材料 (OLPLMs) 在溶液加工和大面积制造方面具有优势.
  • OLPLM 的发光特性对环境刚性非常敏感.
  • 在无形OLPLM中构建刚性环境以增强长时间持久发光 (LPL) 的有效策略是有限的.

研究的目的:

  • 提出一种通用和有效的战略,以提高无形OLPLM的LPL性能.
  • 调查紫外线固化诱导的刚性环境对宿主-客人相互作用和LPL属性的作用.
  • 展示一种用于制造高性能无形OLPLM的简单方法.

主要方法:

  • 制定一项利用紫外线固化来构建有机宿主-客户兴奋剂系统中的刚性环境的通用策略.
  • 通过溶液加工制造无形OLPLM,然后进行紫外线固化.
  • 紫外线固化引起的发光性质和结构变化的表征.

主要成果:

  • 紫外线固化成功地创造了刚性环境,显著提高了无形OLPLM的LPL性能.
  • 严格的环境促进了主机与客人的互动,从而产生了高效的LPL.
  • 开发的策略是解决方案可处理的,使大面积制造成为可能,并且易于实施.

结论:

  • 一个简单的紫外线固化策略提供了一种有效的手段,通过控制环境刚性来增强无形OLPLM中的LPL.
  • 这种方法为开发具有广泛应用的先进无形OLPLM提供了有前途的途径.
  • 潜在的应用包括防伪,非破坏性检测和模式标记.