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P-N junction01:11

P-N junction

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...
Schottky Barrier Diode01:27

Schottky Barrier Diode

Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...

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相关实验视频

Updated: Jun 19, 2026

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM
10:42

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高效率的平面型基于GaN的发光二极管,具有多个局部分解导电通道.

Dae-Choul Choi1, Seung Hun Lee1, Sung-Nam Lee1

  • 1Department of IT Semiconductor Convergence Engineering, Tech University of Korea, Siheung 15073, Republic of Korea.

Materials (Basel, Switzerland)
|June 19, 2024
PubMed
概括

平板型p*-pLED提供了无刻的制造,具有相似的光输出. 增加局部分解导电通道 (LBCC) 降低了电阻,提高了先进的LED设计的效率和壁插头效率 (WPE).

科学领域:

  • 半导体设备物理学 半导体设备物理
  • 光电学是指光电子产品.
  • 材料科学是一种材料科学.

背景情况:

  • 传统的Mesa型LED需要复杂的Mesa蚀刻过程,可能引入晶体缺陷.
  • 平板型p*-p LED提供了替代的制造途径,消除了对表格蚀刻的需求.
  • 当前的平面型p*-pLED显示较高的操作电压,影响整体效率.

研究的目的:

  • 研究降低工作电压和提高平面型p*-pLED效率的方法.
  • 提高这些设备的壁插电效率 (WPE) 和电压效率 (VE).
  • 为了展示一个高效的LED的制造工艺,而没有表格蚀刻引起的晶体缺陷.

主要方法:

  • 使用具有局部分解导电通道 (LBCC) 的p*-p电极制造平面型p*-p LED.
  • 通过应用反向偏差,在p型电极区域形成LBCCs.
  • 增加LBCC的数量,以增加接触面积并减少连续电阻.

主要成果:

  • 平面型p*-pLED在类似的注入电流下,实现了与传统面板型LED相比的光输出功率.
  • 由于p*区域较小,在平面型p*-pLED中观察到更高的操作电压.
  • 增加LBCC的数量成功降低了序列电阻,显示了改善WPE和VE的潜力.
关键词:
在 GaN GaN 中.在LEDLEDLEDLEDLEDLED中,我们可以看到细分方式 细分方式 细分方式效率 效率 效率 效率 效率 效率 效率 效率

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结论:

  • 平板型p*-p LED为传统的LED提供了一个可行的,没有刻的替代方案.
  • 优化LBCC对于减轻高操作电压和增强WPE和VE至关重要.
  • 这种方法有助于开发高效,无缺陷的平面LED.