相关实验视频

Updated: Sep 11, 2025

Low-energy Cathodoluminescence for OxyNitride Phosphors

Low-energy Cathodoluminescence for OxyNitride Phosphors

Published on: November 15, 2016

在压电氧化物中的明亮的敏感的兰化物NIR-II机电发光

Shengqiang Liu¹, Yang Guo¹, Zhen Song²

¹Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China.

Advanced materials (Deerfield Beach, Fla.)

|August 13, 2025

概括

研究人员开发了一种明亮的近红外II机电发光材料,使用压电氧化物中的敏感化兰坦化物. 这种材料为先进的光学应用和安全的信息加密提供了增强的发光.

科学领域:

材料科学材料科学材料科学
光电学是指光电子产品.
发光的光度是非常的低.

背景情况:

近红外 (NIR) 发光材料对于先进的光学设备至关重要.
应用包括防伪,非破坏性分析和深层组织成像.

研究的目的:

开发一种新的NIR-II机械发光 (ML) 材料.
为了提高ML的强度和稳定性.
探索其在信息安全中的应用.

主要方法:

合成的Cr3+敏感化兰坦化物合的β-Ga2O3.3.
研究过的能量传递机制.
使用阴离子合金来优化发光.
通过应变诱导的压电电位分析了ML机制.

主要成果:

在1002nm和1542nm获得明亮的NIR-II ML.
从Cr3+向Yb3+和Er3+进行了几乎完全的能量转移.
通过电离合金显著提高了ML强度.
由于应变诱导的压电电位,观察到异常的循环稳定性.

结论:

在β-Ga2O3.3.中开发了一种高效的Cr3+敏感化兰化物NIR-II ML材料.
与现有材料相比,该材料表现出优越的性能和稳定性.
建立了信息保护的多级加密框架.

关键词:

在NIR-II中,它是NIR-II.转移能量转移能量是什么?机械发光发生在机器上.这是一种压电式电体.

更多相关视频

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals

Published on: April 14, 2020

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...