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Updated: Jun 8, 2026
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Conducting Multiple Imaging Modes with One Fluorescence Microscope
Published on: October 28, 2018
多刺激的双色发光转换通过不同的高光分子板的滑动堆叠通过不同的光分子板
Seong-Jun Yoon1, Jong Won Chung, Johannes Gierschner
1Center for Supramolecular Optoelectronic Materials and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul 151-744, Korea.
Journal of the American Chemical Society
|September 16, 2010
概括
由蓝基制成的高度发光的分子板表现出可调节的两色光. 这种多刺激反应使得新的可重写光光学记录媒体成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 固态物理 固态物理
背景情况:
- 在有机材料中,固态发光调节和切换对于基础研究和光学记录等应用至关重要.
- 开发具有可控制发光性质的材料是材料科学的持续挑战.
研究的目的:
- 为了报告具有高发光性质的烯基基基分子板.
- 为了证明两种颜色的光切换响应外部刺激,如压力,温度和溶剂蒸气.
- 探索这些材料对可重写光光学记录介质的潜力.
主要方法:
- 基于乙烯的分子板的合成.
- 在各种刺激下 (压力,温度,溶剂蒸汽) 调查发光特性.
- 谱学和结构研究 (包括理论辅助分析) 以了解切换机制.
- 制造用于光学记录的装置演示器.
主要成果:
- 分子板表现出两种颜色的光切换.
- 切换机制归因于分子板的剪切滑动能力,导致不同的晶相和改变的π-π重叠.
- 观察到分子间合的变化 (激发性和排外性),与晶相过渡相关.
- 成功准备了一个可重写光光学录音介质的功能设备演示器.
结论:
- 基于乙烯的分子板为多刺激响应的发光提供了一个新的平台.
- 这些片的独特的滑叠行为为可重写光光学记录媒体提供了新的概念.
- 这项工作为先进的光学数据存储技术开辟了道路.
相关概念视频
01:37Super-resolution Fluorescence Microscopy
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
01:23Photoluminescence: 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...
A pair of electrons in a...