相关实验视频
Updated: Jun 4, 2025

Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
通过使GaN中的受体被动化,并激活它们
M A Reshchikov1, O Andrieiev1, M Vorobiov1
1Department of Physics, Virginia Commonwealth University, Richmond, VA 23220, United States of America.
在化 (GaN) 中与碳和等受体形成复合体. 化将这些复合物解离,影响光发光,而在更高的温度下,效果会逆转.
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
- 固态化学 固态化学
背景情况:
- 化 (GaN) 对于节能电子产品至关重要.
- 受体的被动化是GaN导电性的关键.
- 了解受体相互作用对于GaN设备的性能至关重要.
研究的目的:
- 为了研究复合物的形成与碳 (C) 和 (Be) 接受器在GaN.
- 分析热对化GaN的光发光 (PL) 的影响.
- 将实验结果与GaN中气行为的理论计算进行比较.
主要方法:
- 在Be-doped和C-doped GaN.的光发光 (PL) 光谱学.
- 在N2环境中,在不同温度 (350-900°C) 的温度下进行热回火实验.
- 复杂解离和扩散的第一原则计算.
主要成果:
- 在400-900°C时 GaN,降低了与BeGa相关的黄色发光 (YLBe) 强度,表明Be受体被释放的被动化.
- 在C-doped GaN中观察到与CN相关的YL1的类似PL强度下降,这归因于CN受体被动.
- 通过BL2带的上升证实了CNHi复合物的形成;由于去除气,PL强度恢复到900°C以上.
结论:
- 在GaN中的碳和受体与形成复合体,类似于.
- 热回火会影响受体复合体,影响PL的特性.
- 在GaN受体行为中的作用是复杂的,并且取决于温度,对设备制造有影响.
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