不极极的基于InGaN的发光二极管的增强孔输送,具有侧面的p型超晶格合结构
Hongchang Tao1, Shengrui Xu1, Yachao Zhang1
1State Key Laboratory of Wide-Bandgap Semiconductor Devices and lntegrated Technology, School of Microelectronics, Xidian University, Xi'an 710071, China.
Fundamental research
|February 6, 2026
概括
这项研究引入了一种新的非极性印化 (InGaN) 发光二极管 (LED) 结构. 它增强了孔注入和电气性能,使用了新的超级晶格层来提高性能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 光电学是指光电子产品.
背景情况:
- 基于非极性 (10-10) 平面的印化 (InGaN) 发光二极管 (LED) 在生长平面上缺乏固有的极化.
- 然而,偏振效应在侧向[0001]方向是显著的,影响设备性能.
- 在非极性InGaN LED中,高效的孔注入仍然是一个挑战.
研究的目的:
- 提出和研究一种基于InGaN的新型非极性LED结构.
- 为了提高孔的度,并促进垂直孔注射.
- 为了提高非极性LED的电气和光学特性.
主要方法:
- 作为一个孔注射层,使用了侧面的p型化 (AlGaN) /GaN超晶格结构.
- 研究了非极 InGaN 的 [0001] 方向的极化效应.
- 使用数值模拟来分析设备的性能.
主要成果:
- AlGaN/GaN超网格结构在接口上诱导净极化电荷,增加受体电离率.
- 高密度的二维孔气体 (2DHG) 在AlGaN/GaN接口上形成,从而实现高效的垂直孔注入.
- 与传统结构相比,数值模拟显示了较好的电气特性和光学性能.
结论:
- 拟议的横向超网格结构有效地增强了非极性InGaNLED中的孔注入.
- 这种新的方法导致了优越的电气和光学性能.
- 这项研究为推进非极性InGaN LED技术提供了有前途的途径.
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