高压电力电子技术的进步使用Ga2O基于HEMT:建模
Reem Alhasani1, Hadba Hussain1, Mohammed A Alkhamisah1
1King Abdulaziz City for Science and Technology (KACST), Energy and Industry Sector, Microelectronics and Semiconductors Institute, Riyadh 11442, Saudi Arabia.
氧化 (Ga2O3) 通过创建二维电子气体 (2DEG) 通道,增强化 (GaN) 高电子流动性晶体管 (HEMT). 这种先进的缓冲层提高了下一代动力电子产品的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 半导体物理 半导体物理
- 电气工程 电气工程
背景情况:
- 氧化 (Ga2O3) 是一种超宽带间隙 (UWBG) 半导体,具有优异的传输性能,用于高压电源设备.
- Ga2O3正在成为下一代动力电子产品的关键材料.
- 高电子移动性晶体管 (HEMT) 对于先进的电子应用至关重要.
研究的目的:
- 研究Ga2O3缓冲层对基于GaN的HEMT的影响.
- 分析输出I-V特性和表面电荷效应.
- 探索极化诱导的2DEG的使用,以提高HEMT的性能.
主要方法:
- 使用表面电荷模型模拟了一个2D Ga2O3/GaN HEMT结构.
- 为UWBG应用提出了一个III-N/Ga2O3异构结构.
- 在接口上评估了2DEG的形成.
主要成果:
- 在Ga2O3/GaN接口的极化诱导的二极极体中证实了2DEG通道的形成.
- 观察到值电压的负转变,表明道导电性增强.
- 证明了Ga2O3作为缓冲层提高HEMT性能的有效性.
结论:
- Ga2O3缓冲层通过使极化诱导的2DEG形成,显著增强了基于GaN的HEMT.
- III-N/Ga2O3 异构结构为功率电子提供了一个具有成本效益的UWBG解决方案.
- 基于AlGaN/Ga2O3的HEMT显示出未来电力电子应用的巨大潜力.
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