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Liquefaction of water on the surface of anisotropic two-dimensional atomic layered black phosphorus.


ABSTRACT: The growth and wetting of water on two-dimensional(2D) materials are important to understand the development of 2D material based electronic, optoelectronic, and nanomechanical devices. Here, we visualize the liquefaction processes of water on the surface of graphene, MoS2 and black phosphorus (BP) via optical microscopy. We show that the shape of the water droplets forming on the surface of BP, which is anisotropic, is elliptical. In contrast, droplets are rounded when they form on the surface of graphene or MoS2, which do not possess orthometric anisotropy. Molecular simulations show that the anisotropic liquefaction process of water on the surface of BP is attributed to the different binding energies of H2O molecules on BP along the armchair and zigzag directions. The results not only reveal the anisotropic nature of water liquefaction on the BP surface but also provide a way for fast and nondestructive determination of the crystalline orientation of BP.

SUBMITTER: Zhao J 

PROVIDER: S-EPMC6731341 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Liquefaction of water on the surface of anisotropic two-dimensional atomic layered black phosphorus.

Zhao Jinlai J   Zhu Jiajie J   Cao Rui R   Wang Huide H   Guo Zhinan Z   Sang David K DK   Tang Jiaoning J   Fan Dianyuan D   Li Jianqing J   Zhang Han H   Zhang Han H  

Nature communications 20190906 1


The growth and wetting of water on two-dimensional(2D) materials are important to understand the development of 2D material based electronic, optoelectronic, and nanomechanical devices. Here, we visualize the liquefaction processes of water on the surface of graphene, MoS<sub>2</sub> and black phosphorus (BP) via optical microscopy. We show that the shape of the water droplets forming on the surface of BP, which is anisotropic, is elliptical. In contrast, droplets are rounded when they form on t  ...[more]

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