高性能p-Cu2O/n-β-Ga2O3异质连接屏障 施托基二极管与铜接触
Xiaohui Wang1,2, Xuhui Liu1, Mujun Li2
1Peng Cheng Laboratory, Shenzhen 518000, China.
Nanomaterials (Basel, Switzerland)
|December 24, 2025
概括
制造了高性能氧化铜/氧化异质连接屏障Schottky (JBS) 二极管. 这些二极管表现出优异的高压性能和稳定性,使它们适合电力电子.
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) 是一个有前途的超宽带隙半导体,用于高功率电子产品.
- 与传统的Schottky二极管相比,异质连接屏障Schottky (JBS) 二极管提供了更好的性能.
- 开发高效的阳极材料对于优化JBS二极管性能至关重要.
研究的目的:
- 为了制造高性能的p-Cu2O/n-β-Ga2O3异质连接屏障Schottky (JBS) 电极.
- 为了研究铜氧化物 (Cu2O) 间距对设备特性的影响.
- 为了评估制造的JBS二极管的电性能和稳定性.
主要方法:
- 使用铜作为阳极金属制造p-Cu2O/n-β-Ga2O3异质连接.
- 将Cu2O间距优化为4微米.
- 电气性能的表征,包括启动电压,故障电压和特定的电阻.
- 在高温和逆应力条件下对设备稳定性的评估.
主要成果:
- 实现了0.78V的低开启电压和1700V的高故障电压.
- 获得了5.91mΩ·cm2的特定电阻,导致功率值为0.49GW/cm2.
- 从300K到425K表现出稳定的电气特性.
- 经过200V反向应力5000秒后的最小变化,对应力诱导的降解表现出极好的抵抗力.
结论:
- 制造的Cu2O/Ga2O3 JBS二极管在高压应用中表现出卓越的性能.
- 优化Cu2O间距对于实现高性能JBS二极管至关重要.
- 这些二极管是下一代高效率和高压功率电子产品的有希望的候选者.
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