一个纳米级的光子热晶体管用于次秒热流切换
Ju Won Lim1, Ayan Majumder2, Rohith Mittapally2
1Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, USA.
Nature communications
|July 3, 2024
概括
研究人员使用氧化瓦纳开发了一种纳米级辐射热晶体管. 该设备主动控制热流,显示辐射热传输的三倍变化,并为先进的热管理提供快速切换时间.
科学领域:
- 纳米技术 纳米技术
- 热物理 热物理
- 材料科学 材料科学 材料科学
背景情况:
- 热流的积极控制对于热逻辑和管理至关重要.
- 在主动热流控制方面的实验进展是有限的.
研究的目的:
- 为了展示一个纳米级的辐射热晶体管用于主动热流控制.
- 用一个氧化瓦纳门来研究辐射热传递的调制.
主要方法:
- 制造一个纳米尺度的设备与化膜的来源和排水.
- 在源排水附近集成基于氧化瓦纳 (VOx) 的门电极.
- 利用VOx的取决于温度的金属绝缘器转换来调节辐射热传递.
主要成果:
- 在源和排水之间实现了辐射热传递的三倍变化.
- 由于热质量小,已证明快速切换时间约为500毫秒.
- 通过详细的理论计算支持的实验发现.
结论:
- 开发的基于纳米膜的热晶体管能够积极控制热流.
- 这项技术为新型热电路和逻辑设备提供了潜力.
- 进步为改进的热管理解决方案铺平了道路.
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