通过使用碳量子点涂层,增强化微球的绿色上转化辐射的光度
Thuy Chi Do1, Thuy Van Nguyen2,3, Huy Bui4,5
1Thai Nguyen University of Education, Thai Nguyen University, 20 Luong Ngoc Quyen Rd, Thai Nguyen, 250000, Vietnam.
Journal of fluorescence
|September 4, 2023
概括
研究人员开发了新的发射装置,使用涂有双排放碳量子点的氧化微球. 这会产生强烈的绿色上升转换光,对微型设备和光子集成电路有用.
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.
- 纳米技术 纳米技术
背景情况:
- 高质量的光学腔与发射纳米粒子相结合,可以产生增强的发光设备.
- 添加材料以其向上转换的发光特性而闻名.
研究的目的:
- 为了展示一种新的强发射装置,用双排放碳量子点涂覆氧化微球.
- 研究光增强机制及其对涂层厚度的依赖.
主要方法:
- 通过热水工艺制造双排碳量子点 (3-5纳米).
- 用合成的碳量子点覆盖一个杂的微球.
- 通过光纤在976nm处对涂层微球进行光学送.
主要成果:
- 双排放碳量子点涂层显微球在537nm时表现出强烈的绿色上转换发光,线宽窄.
- 碳量子点显示了410-550纳米范围内的辐射波长.
- 观察到光增强,与高贵的金属薄膜相比,并且取决于碳量子点层厚度.
结论:
- 开发的碳量子点涂层的二氧化微球是可见光发射的一个有前途的平台.
- 该技术适用于制造可见发射微设备和光子集成电路.
相关概念视频
01:14Photoluminescence: Applications
429
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...
429
01:23Photoluminescence: Fluorescence and Phosphorescence
2.1K
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...
2.1K