相关实验视频
Updated: Jun 29, 2025

07:03
Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
10.7K
在为高指数色彩染和高功率照明制备透明陶方面取得的最新进展
Boshen Du1, Wanyuan Li1, Lin Zhang1
1School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Molecules (Basel, Switzerland)
|March 28, 2024
概括
研究人员审查了为高功率白色发光二极管 (wLED) 和激光二极管 (wLD) 制造透明陶 (TPC) 材料的策略. 目标是为先进的照明应用实现高颜色染指数 (CRI).
科学领域:
- 材料科学 材料科学 材料科学
- 固态照明 固态照明
- 光电学是指光电子产品.
背景情况:
- 使用透明陶 (TPC) 的高功率白色发光二极管 (wLED) 和激光二极管 (wLD) 提供了亮度和寿命等优势.
- 目前基于TPC的wLED/wLD都在努力实现高颜色染指数 (CRI),这限制了它们的采用.
研究的目的:
- 审查开发TPC材料的最新策略,用于高功率的WLED/高CRI (>75) 的WLD.
- 讨论各种TPC施工方法的设计原理,光发光特性和设备性能.
主要方法:
- 将TPC构建协议分为四组:主体调节,红色发射剂兴奋剂,组合方法和复合结构.
- 对每个策略的设计原则,光发光特性和设备性能进行分析.
主要成果:
- 确定了构建TPC的四个主要策略,以提高wLED/wLD中的CRI.
- 详细讨论每个策略在实现高CRI和绩效方面的有效性.
结论:
- 在基于TPC的wLED/wLD中实现高CRI仍然是一个挑战,但经过审查的策略提供了前进的途径.
- 未来的趋势集中在克服当前的局限性,以广泛应用高功率,高CRI TPC照明.
相关概念视频
Photoluminescence: Applications
393
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...
393
Photoluminescence: Fluorescence and Phosphorescence
2.0K
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...
2.0K

