Two-step growth of superhydrophobic ZnO nanorod array films | Zendy

Gong Mao-Gang | Zendy; Xu Xiao-Liang | Zendy; Cao Zi-Li | Zendy; Yuanyue Liu | Zendy; Zhu Haiming | Zendy

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Two-step growth of superhydrophobic ZnO nanorod array films

Author(s) -

Gong Mao-Gang,

Xu Xiao-Liang,

Cao Zi-Li,

Yuanyue Liu,

Zhu Haiming

Publication year - 2009

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.58.1885

Subject(s) - nanorod , materials science , contact angle , scanning electron microscope , sputter deposition , substrate (aquarium) , nanotechnology , layer (electronics) , deposition (geology) , thin film , phase (matter) , chemical engineering , sputtering , optoelectronics , composite material , chemistry , paleontology , oceanography , organic chemistry , sediment , engineering , geology , biology

Well-aligned ZnO nanorod array films (ZnO-NAFs) were coatedon common glass substrate by two-step method. A thin buffer layer of ZnO seeds were first deposited via RF magnetron sputtering,the ZnO-NAFS were then grown in a simple aqueous solution. We report a surface-modification induced hydrophilicity to superhydrophobicity transiton on ZnO-NAFs. The sample was characterized by scanning electron microscopy (SEM). The surfaces of ZnO-NAFs was superhydrophobic with a three-phase contact angle of 151°±0.5°, while the sliding angle is 7°. The superhydrophobicity of ZnO-NAFs was validated by Cassie's model.

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