相关实验视频

Updated: Jun 4, 2025

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

胺-甲微球内内内基因碳点策略用于多功能混合光/室温光应用在干燥状态和水性环境中的多功能混合光

Jian Qu¹, Xinzhe Yin¹, Jinju Shao¹

¹School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, P. R. China.

ACS applied materials & interfaces

|December 26, 2024

概括

研究人员在微球内开发了新的碳点,创造了混合光/室温光材料. 这些材料在各种溶剂中表现出稳定的双模式排放,可用于LED和防伪.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
光物理学的光学物理学

背景情况:

混合光 (FL) 和室温光 (RTP) 材料对于先进的应用至关重要,但面临氧气火和溶剂效应等挑战.
现有的RTP材料通常依赖SiO2基底,在水性或有机环境中难以保持稳定.

研究的目的:

开发一种新的策略,用于在胺-甲 (MF) 微球中使用内源性碳点 (CD) 来创建稳定的混合FL/RTP材料.
研究这些CDs@MF材料的形成机制和发光特性.
展示它们在光电子和安全功能中的潜在应用.

主要方法:

碳点 (CDs) 通过异甲酸 (IPA) 分子在胺-甲 (MF) 微球中的热解来合成.
系统地研究CDs@MF的形成机制,分析最终微球的分子前体.
光物理性质的表征,包括光和RTP发射,量子产量和不同溶剂中的稳定性.

主要成果:

成功合成了内基CDs@MF微球,表现出强大的共价和键接口连接,受到MF外的保护.
达到稳定的黄色/色RTP发射约7秒,肉眼可见,即使在水和有机溶剂中.
经过证明的混合FL/RTP双模式发射 (白色和色光) 量子产量为29%-36%,成功应用于单个基于CD的白色和色LED,可调色色温.
展示了使用CDs@MF微球的防水防伪和时间依赖的信息加密功能.

结论:

在MF微球中的内源性CD策略有效地激活RTP,并增强了对溶剂和氧气火的材料稳定性.
开发的CDs@MF微球为多功能,耐溶剂混合FL/RTP材料提供了一个多功能平台.
这种方法为创建具有可调节属性的先进光电子设备和安全功能提供了有效的策略.

关键词:

碳点是指碳点的部分.这是内生代的内生代.混合光/光光.微球微球是指一个微球.光是一种光效应.

更多相关视频

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Synthesis and Calibration of Phosphorescent Nanoprobes for Oxygen Imaging in Biological Systems

Synthesis and Calibration of Phosphorescent Nanoprobes for Oxygen Imaging in Biological Systems

Published on: March 3, 2010

相关概念视频

Photoluminescence: Applications

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...

Variables Affecting Phosphorescence and Fluorescence

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...

Super-resolution Fluorescence Microscopy

Super-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...