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纳米线在曲过程中显著降低了导热率

Jun Huang^1,2, Yufeng Zhang¹, Aoran Fan¹

¹Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China.

ACS applied materials & interfaces

|August 9, 2023

概括

纳米线曲用于柔性电子显著降低了55-78%的导热率由于应变引起的结构变化. 这项研究提出了一种新的方法来测量这种效应在现场.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
固态物理固态物理

背景情况:

纳米线为电子产品提供了灵活性,克服了批量的局限性.
曲应变影响纳米线的导热性,对设备性能至关重要.
在现场测量曲纳米线的导热性是具有挑战性的,因为接触电阻.

研究的目的:

开发和演示一种用于测量纳米线曲的导热率的现场方法.
在曲过程中量化纳米线的应变导热率变化.

主要方法:

配合拉曼光谱辅助的稳定状态导热量测量与微操纵系统.
在现场监测控制曲下纳米线的导热性变化.
使用拉曼光谱来评估应力诱导的结构变形.

主要成果:

在曲过程中,纳米线的导热率大幅下降,降低了55-78%.
应变诱导的结构变形被确定为热导率降低的主要原因.
开发的测量技术在现场分析中被证明有效.

结论:

该研究成功地展示了一种在现场方法,用于测量纳米线的应变依赖热导率.
显著的导热率降低凸显了灵活的纳米线电子产品中热管理的重要性.
该方法可适应在机械应变下评估其他纳米材料.

关键词:

拉曼光谱法拉曼光谱法灵活的电子产品灵活的电子产品在现场 (in situ) 进行.纳米线的使用方法导热率导热率导热率导热率导热率导热率

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