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240201s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c03472
|2 doi
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|a (NLM)38299976
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|a eng
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|a Chen, Xihao
|e verfasserin
|4 aut
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|a Strain-Driven High Thermal Conductivity in Hexagonal Boron Phosphide Monolayer
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 13.02.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Two-dimensional graphenelike material, hexagonal boron phosphide (h-BP), is a promising candidate for electronic and optoelectronic devices because of its suitable band gap and high carrier mobility. Especially from the ultrahigh lattice thermal conductivity (κl), it exhibits great potential to solve the challenges of future thermal management applications. Here, the excellent lattice thermal transport properties of the h-BP monolayer are systematically analyzed at the atomic level based on the first-principles method. The results show that the ultrahigh κl value of the h-BP monolayer is attributed to its high phonon group velocity and long phonon lifetime and the strong phonon hydrodynamic effect. We further explore the influence of the tensile strain on the thermal transport properties of the h-BP monolayer. As the strain increases from 0 to 8%, the κl value shows a trend of first increasing and then decreasing due to the coeffect of strain-driven changes for phonon harmonicity and anharmonicity. Under a strain of 6%, the κl value of the h-BP monolayer is as high as 795 W/mK at 300 K, which is about 2.22 times larger than that of 357 W/mK without strain. Such a significant increase in the κl value is mainly due to the increased phonon group velocity and decreased Grüneisen parameter caused by strain. This work is helpful to understand the critical role of tensile strain in lattice thermal transport of two-dimensional graphenelike materials. It is conducive to promoting the thermal management application of the h-BP monolayer
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|a Journal Article
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| 700 |
1 |
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|a Wang, Guangzhao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Bingke
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Ning
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 40(2024), 6 vom: 13. Feb., Seite 3095-3104
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:40
|g year:2024
|g number:6
|g day:13
|g month:02
|g pages:3095-3104
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|u http://dx.doi.org/10.1021/acs.langmuir.3c03472
|3 Volltext
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