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独立的双壁碳纳米管网络的增强热导率

Jake Dudley Mehew¹, Marina Y Timmermans², David Saleta Reig¹

¹Catalan Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC, Campus UAB Bellaterra, Barcelona 08193, Spain.

ACS applied materials & interfaces

|October 27, 2023

概括

独立的双壁碳纳米管 (CNT) 薄膜具有很高的导热性,这对于先进的电子设备至关重要. 这些纳米材料与单壁CNT薄膜相比,提供更好的散热能力,有利于极端紫外线光刻等应用.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
热力工程是热力工程中的一个.

背景情况:

纳米材料比散装材料具有优越的性能,热性能对电子设备至关重要.
有效的散热对于高性能电子,能源效率和防止热损伤至关重要.
极端紫外线 (EUV) 光刻需要具有高EUV透明度,机械强度和导热性的片.

研究的目的:

为了研究独立的碳纳米管 (CNT) 膜的热传输特性.
了解这些片对于EUV光刻应用的适用性.
在高温下测量CNT薄膜的导热率.

主要方法:

采用全光学拉曼温度计来测量导热率.
测量是在300K到700K的温度下对独立的CNT薄膜进行的.
分析了片和CNT网络的热导率.

主要成果:

对于双壁CNT (DWCNT) 薄膜,测量了高达50W m^-1 K^{-1 的导热.}
仅仅考虑CNT网络,导热率达到257W m-1 K-1.
DWCNT薄膜的导热率大约是单壁CNT薄膜的七倍.

结论:

与SWCNT片相比,独立的DWCNT片具有显著增强的导热能力.
增强的热性能归因于DWCNT中的额外墙,可能增加声声模式和缺陷弹性.
这些发现凸显了DWCNT薄膜在EUV光刻等苛刻应用中有效散热的潜力.

关键词:

拉曼温度计的使用方法碳纳米管是如何使用的极端紫外线极端紫外线石版印刷石版印刷石版印刷皮质的皮质皮质的皮质.导热率导热率导热率导热率导热率导热率

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