相关实验视频
Updated: Feb 13, 2026

Triplet Fusion Upconversion Nanocapsule Synthesis
Published on: September 7, 2022
纳米集群感应器释放了鲁布伦的消灭器潜力,使高性能NIR到可见光子上转换成为可能
Masaaki Mitsui1, Shinjiro Takano2, Tatsuya Tsukuda2
1Department of Chemistry, College of Science, Rikkyo University, Tokyo, Japan.
一个新的金纳米集群,Au42,显著提高近红外到可见光上转换使用rubrene. 这一突破实现了创纪录的量子产量,为先进的光子学和能源应用铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 光子学 是一个光子学.
背景情况:
- 光子上转换 (UC) 将近红外 (NIR) 光子转换为可见光,对于太阳能,光催化和生物光子学至关重要.
- 从NIR到可见的UC的进展受到高效的三重传感器缺乏rubrene,一个关键的消灭器/发射器,阻碍.
研究的目的:
- 开发一种新的黄金纳米集群传感器,用于高性能NIR到可见UC.
- 为了研究rubrene作为一个消灭器/发射器的潜力,当与一个优化的敏感器配对时.
主要方法:
- 一个针状金纳米集群的合成和特征,Au42(PET) 32 (Au42).
- 在808nm和936nm激发下对NIR到可见UC的Au42/rubrene系统的评估.
- 对UC量子收益率 (ΦUC) 和值强度 (Ith) 的定量分析.
主要成果:
- 欧42 / 烯对显示了创纪录的UC量子产率16.5% (ΦUCg = 21.4%) 在808nm和12.3% (ΦUCg = 15.0%) 在936nm.
- 实现了0.14 W cm-2的低值强度 (Ith),显著优于以前的系统.
- 鉴定了高旋转统计因子 (f = 0.58) 的rubrene,表明潜在的~30%的UC量子收益率.
结论:
- Au42 作为一个基准传感器,释放 rubrene 的高效 NIR-to-visible UC 的潜力.
- Au42的独特电子结构将光子损失降至最低,从而实现高性能.
- 这项工作建立了高效,低值的NIR-to-visible UC系统的设计原则.
更多相关视频
11:20An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
Published on: August 30, 2017
11:26Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
相关概念视频
Potential Energy
Chemical bonds that form attractive forces between atoms also contain potential energy, called chemical energy. When a chemical reaction...
Potential Energy
Cell Potential and Free Energy
Thermodynamics is the branch of physics dealing with the relationship between heat and other forms of energy. In an electrochemical cell, chemical energy is converted into electrical energy.
Thus, a link can be predicted between cell potential, free energy change, and the equilibrium constant for the reaction. Cell potential can also be measured as the oxidant or the reducing strength, and similar acid-base strength measures are reflected in equilibrium...
Standard Electrode Potentials
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
The Resting Membrane Potential