Phonon-Induced Ratchet Motion of a Water Nanodroplet on a Supported Black Phosphorene

doi:10.1021/acs.jpclett.0c01179

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	Phonon-Induced Ratchet Motion of a Water Nanodroplet on a Supported Black Phosphorene
	Chen, JG
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2020
卷号	11 期号:11 页码:4298-4304
关键词	THERMAL-CONDUCTIVITY BROWNIAN MOTORS TRANSPORT RECTIFICATION ENHANCEMENT GRAPHENE DRIVEN
ISSN号	1948-7185
DOI	10.1021/acs.jpclett.0c01179
文献子类	期刊论文
英文摘要	Phonons are not supposed to carry any physical momentum as lattice vibrational modes; thus, it is believed no mass transport could be induced by phonons. In this Letter, we show that a ratchet motion of a water nanodroplet could be induced on a two-dimensional puckered lattice like black phosphorene (BP) by exciting its flexural phonons through a moving substrate. The water nanodroplet exhibits a forward motion along the armchair or a backward motion along the zigzag directions on a BP lattice that is supported on a substrate possessing a relative armchair or zigzag forward motion with BP. Through the analysis of the structure and vibrational density states of BP, it is found that in-plane lattice displacement asymmetry and the in-plane vibration asymmetry are induced by the excited flexural phonons, which determine the water nanodroplet motion as an anisotropic Brownian motor. Simulations of the nanodroplet motion as functions of the substrate relative motion speed and direction and also the substrate coupling strength with BP are performed. Results of the nanodroplet ratchet motion exhibit good agreement with the theoretical predications from calculating the Brownian motor asymmetry. Our findings reveal a promising mass transport strategy and a further understanding of phonon-related interactions in crystalline solids.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33062]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Chen, JG. Phonon-Induced Ratchet Motion of a Water Nanodroplet on a Supported Black Phosphorene[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2020,11(11):4298-4304.
APA	Chen, JG.(2020).Phonon-Induced Ratchet Motion of a Water Nanodroplet on a Supported Black Phosphorene.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,11(11),4298-4304.
MLA	Chen, JG."Phonon-Induced Ratchet Motion of a Water Nanodroplet on a Supported Black Phosphorene".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 11.11(2020):4298-4304.