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相关概念视频

Biasing of P-N Junction01:16

Biasing of P-N Junction

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The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
528
P-N junction01:11

P-N junction

525
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
525

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对于高效的矿发光二极管来说,规范表面-振器结合优先.

Xinwen Sun1,2, Weiwei Meng1, Kwan Ho Ngai2

  • 1South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, China.

Advanced materials (Deerfield Beach, Fla.)
|April 4, 2024
PubMed
概括

研究人员为矿发光二极管 (PeLED) 开发了一种新的被动化策略. 这种方法通过优化被动器和矿之间的粘合相互作用来提高设备的效率和稳定性.

关键词:
缺陷被动化 缺陷被动化通过气结合,形成了气结合.接近红外线的辐射.运营寿命 运营寿命矿照明的发光二极管是矿的发光二极管.

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相关实验视频

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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.
  • 化学 化学 化学

背景情况:

  • 高效的矿发光二极管 (PeLED) 需要抑制由陷引起的非辐射损失.
  • 沉浸剂和矿之间的复杂结合阻碍了有效的被动化,这是一个尚未完全理解的过程.

研究的目的:

  • 量化评估被动器和矿之间的粘合动态.
  • 了解功能组属性如何影响被动化效率.
  • 开发提高PeLED性能的策略.

主要方法:

  • 功能组与矿表面之间的数量,类别和结合度的定量评估.
  • 功能组属性的分析,如静电电位和静电阻碍.
  • 调整具有约束力的优先事项和协调能力,以优化被动化.

主要成果:

  • 具有高静电电位和硬体阻碍的功能组优先与完美的矿表面结合,限制缺陷被动化.
  • 优化具有约束力的优先事项和协调能力可以减少被动化障碍.
  • 在没有光外合的近红外PeLED中实现了创纪录的24.3%的外部量子效率.

结论:

  • 了解被动化动态对于高性能PeLED来说至关重要.
  • 定制被动器-矿相互作用导致设备效率和稳定性的显著改善.
  • 该研究为开发下一代PeLED提供了洞察力.