Preparation of superhydrophobic nanodiamond and cubic boron nitride films

Journal Article · Mon Sep 27 00:00:00 EDT 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3494269· OSTI ID:21466941

Zhou, Y B; Liu, W M; Wang, P F ^[1]; Yang, Y; Ye, Q; He, B; Pan, X J; Zhang, W J; Bello, I; Lee, S T ^[2]; Zou, Y S ^[3]

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1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)
2. Department of Physics and Materials Sciences, Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong)
3. Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (China)

Superhydrophobic surfaces were achieved on the hardest and the second hardest materials, diamond and cubic boron nitride (cBN) films. Various surface nanostructures of nanocrystalline diamond (ND) and cBN films were constructed by carrying out bias-assisted reactive ion etching in hydrogen/argon plasmas; and it is shown that surface nanostructuring may enhance dramatically the hydrophobicity of ND and cBN films. Together with surface fluorination, superhydrophobic ND and cBN surfaces with a contact angle greater than 150 deg. and a sliding angle smaller than 10 deg. were demonstrated. The origin of hydrophobicity enhancement is discussed based on the Cassie model.

• OSTI ID: 21466941
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 13 Vol. 97; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ARGON
BORON COMPOUNDS
BORON NITRIDES
CARBON
CHARGED PARTICLES
CHEMICAL REACTIONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
DIAMONDS
ELEMENTS
ETCHING
FILMS
FLUIDS
FLUORINATION
GASES
HALOGENATION
HYDROGEN
IONS
MINERALS
NANOSTRUCTURES
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
PLASMA
PNICTIDES
RARE GASES
SPUTTERING
SURFACE FINISHING
SURFACES
THIN FILMS