Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 4, Pages 1191-1195Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm02955f
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Funding
- Australian Research Council
- University of Queensland
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Ultrathin BN sheets protruded from BN fibers were fabricated through a designated facile multi-zone CVD process using ZnS nanowires as templates. Their field-emission characteristics show a low turn-on field of 1.9 V mu m(-1), a low threshold field of 4.65 V mu m(-1), a very high field-enhancement factor (similar to 1600), and a high stability with a low fluctuation of the field-emission current (similar to 1%). It is believed that the ultrathin BN nanosheets are necessary for securing these extraordinary field-emission properties. These results suggest that ultrathin BN nanosheets can be excellent candidates for applications as field emitters or other device systems.
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