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Photoluminescence: Fluorescence and Phosphorescence01:23

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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...
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蓝色矿激光发射源于通过缺陷工程的捆绑激励子.

Guochao Lu1, Xinyang Wang1, Xinyi Jiang1

  • 1School of Materials Science and Engineering, State Key Laboratory of Silicon and Advanced Semiconductor Materials, Zhejiang University, Hangzhou 310027, P. R. China.

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|August 15, 2024
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概括

完全无机矿薄膜中的缺陷工程使用氧化 (OABr) 添加剂可实现高效的蓝色刺激发射. 这种方法利用缺陷来创建绑定激子,为高性能蓝色矿激光器铺平了道路.

关键词:
蓝色激光是蓝色的激光.绑定了激发子的激发子缺陷工程是什么?缺陷工程是什么?佩洛夫斯基特的电影刺激性排放刺激的排放

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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.
  • 光子学是指光子学的使用方法.

背景情况:

  • 全无机矿薄膜是有希望的激光增益材料,因为它们的光电子特性和溶液可加工性.
  • 蓝色矿的激光性能受到高缺陷密度的限制.

研究的目的:

  • 为了证明矿膜中增强蓝色刺激排放的缺陷工程.
  • 为了利用缺陷在蓝色激光应用中形成结合激子.

主要方法:

  • 在混合Rb/Cs矿薄膜中引入深层缺陷,使用氧化 (OABr) 添加剂.
  • 使用工程化矿膜制造垂直腔表面发射激光器 (VCSEL).

主要成果:

  • 从与缺陷相关的结合激子中实现了蓝色放大自发发射 (ASE).
  • 显示了13.5μJ/cm2的低值和744.7cm-1的高光学增益.
  • 从一个VCSEL获得的单模蓝色辐射在482nm.

结论:

  • 缺陷工程是开发高性能蓝色矿激光增益材料的可行策略.
  • 使用OABr添加剂有助于创建绑定激子,以实现高效的蓝色激光.
  • 这项工作为推进基于矿的光电子设备中的蓝色激光提供了洞察力.