气候变化领域集成服务门户(CCPortal): Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride

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DOI	10.1126/science.aaz6149
	Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride
	Chen K.; Song B.; Ravichandran N.K.; Zheng Q.; Chen X.; Lee H.; Sun H.; Li S.; Gamage G.A.G.U.; Tian F.; Ding Z.; Song Q.; Rai A.; Wu H.; Koirala P.; Schmidt A.J.; Watanabe K.; Lv B.; Ren Z.; Shi L.; Cahill D.G.; Taniguchi T.; Broido D.; Chen G.
发表日期	2020
ISSN	0036-8075
起始页码	555
结束页码	559
卷号	367 期号:6477
英文摘要	Materials with high thermal conductivity (k) are of technological importance and fundamental interest. We grew cubic boron nitride (cBN) crystals with controlled abundance of boron isotopes and measured k greater than 1600 watts per meter-kelvin at room temperature in samples with enriched 10B or 11B. In comparison, we found that the isotope enhancement of k is considerably lower for boron phosphide and boron arsenide as the identical isotopic mass disorder becomes increasingly invisible to phonons. The ultrahigh k in conjunction with its wide bandgap (6.2 electron volts) makes cBN a promising material for microelectronics thermal management, high-power electronics, and optoelectronics applications. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	boron arsenide boron derivative boron phosphide cubic boron nitride isotope unclassified drug concentration (composition)inorganic compound temperature effect thermal conductivity Article phonon priority journal thermal conductivity ultrahigh thermal conductivity
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133746
推荐引用方式 GB/T 7714	Chen K.,Song B.,Ravichandran N.K.,et al. Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride[J]. Science,2020,367(6477).
APA	Chen K..,Song B..,Ravichandran N.K..,Zheng Q..,Chen X..,...&Chen G..(2020).Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride.,367(6477).
MLA	Chen K.,et al."Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride".367.6477(2020).