相关实验视频

Updated: May 8, 2025

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Enhanced Electron Injection and Exciton Confinement for Pure Blue Quantum-Dot Light-Emitting Diodes by Introducing Partially Oxidized Aluminum Cathode

Published on: May 31, 2018

从Bi³⁺ 增强红色排放敏感的Eu³⁺ 激活的BaLaGa₃ O₇ 光用于固态照明应用

B Vasanthi^1,2, N Gopakumar², P S Anjana³

¹Post Graduate Department of Physics, All Saints' College, University of Kerala, Trivandrum, Kerala, India, 695007.

Journal of fluorescence

|March 4, 2025

概括

用 (Bi3+) 和欧 (Eu3+) 合的新型陶体显示出强烈的红光发射. 这些材料具有出色的热稳定性和机械发光,使它们适合用于LED和应力传感器.

科学领域:

材料科学材料科学材料科学
固态化学固态化学
发光的光度是非常的低.

背景情况:

宽带间隙陶光对于光电子应用至关重要.
已知欧 (Eu3+) 兴奋剂会产生红色的辐射.
(Bi³⁺) 敏感化可以增强发光特性.

研究的目的:

为了合成和描述Bi³⁺敏感的BaLa_0.95Ga₃O₇:0.05Eu³⁺陶.
研究它们的结构,光学和发光性质.
评估它们在LED和传感器应用中的潜力.

主要方法:

合成的传统固态反应方法.
用于结构分析的X射线衍射 (XRD).
场辐射扫描电子显微镜 (FESEM) 和能量分散式X射线光谱 (EDAX) 用于形态学和元素分析.
紫外线可见吸收,光发光 (PL),温度依赖的光发光 (TDPL) 和机械发光 (ML) 研究用于光学和发光特性.

主要成果:

合成的光体呈现单相四角形结构,由XRD证实.
观察到强烈的红色辐射具有高颜色纯度,适合红色LED.
经过优化后的光剂表现出极好的热稳定性 (在423K保持91%的强度) 和显著的机械发光.
在使用Bi³⁺和Eu³⁺进行兴奋剂后,没有观察到任何显著的结构变化.

结论:

Bi³⁺-敏感的BaLaGa₃O₇:Eu³⁺陶是光电子设备的有希望的材料.
它们强烈的红色发射,热稳定性和机械发光特性使它们适合UV/近UVLED和转换白色LED (WLED).
机械发光表明了作为压力传感器的潜在应用.

关键词:

酸盐是一种酸盐.机械发光机械发光机摄影发光效应是一种光照效应.温度取决于光照的光发光.在X射线中,X射线的衍射效果是不同的.

更多相关视频

Luminophore Formation in Various Conformations of Bovine Serum Albumin by Binding of GoldIII

Luminophore Formation in Various Conformations of Bovine Serum Albumin by Binding of GoldIII

Published on: August 31, 2018

A Step Beyond BRET: Fluorescence by Unbound Excitation from Luminescence FUEL

A Step Beyond BRET: Fluorescence by Unbound Excitation from Luminescence FUEL

Published on: May 23, 2014

相关概念视频

Labeling DNA Probes

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...

Reporter Genes

Reporter Genes

Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.