Journal
SURFACE INNOVATIONS
Volume 1, Issue 1, Pages 32-39Publisher
ICE PUBLISHING
DOI: 10.1680/si.12.00007
Keywords
nanostructures; superhydrophobicity; thin film; vapor deposition
Funding
- WPI Center for Materials Nanoarchitectonics (MANA) of the National Institute for Materials Science (NIMS
- Tsukuba, Japan)
- Grants-in-Aid for Scientific Research [23310082] Funding Source: KAKEN
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This study begins with a brief discussion on the high-temperature chemical vapor deposition synthesis of transparent boron nitride nanosheet films on silicon/silicon dioxide substrates. The compact nanosheets grew perpendicular to the substrate surface, and the majority of them had thicknesses of less than 5 nm. Ultraviolet visible spectroscopy measurements demonstrated a wide optical band gap of similar to 5.6 eV of nanosheets, and cathodo-luminescence spectroscopy showed their strong luminescence emission in the ultraviolet region. The nanorough surface morphology of the films induced nonwetting and self-cleaning features with water contact angles reaching similar to 153 degrees. Such transparent superhydrophobic films can be utilized for the preparation of nonwetting ultraviolet light-emitting surfaces for optoelectronics applications, antifouling surfaces on marine vessels or oil-water separation equipments.
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