Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595532 | Solid State Communications | 2008 | 4 Pages |
Abstract
The first-principles density-functional theory is used to study the geometrical structures and field emission properties of different boron nitride nanocones with 240∘ disclination. It is found that the nanocones can be stable under applied electric field and the emission current is sensitively dependent on the tips of nanocones. The nanocones with homonuclear bonds at the tip can introduce additional energy states near Fermi level, which can reduce the ionization potential and increase the emission current of these boron nitride nanocones. This investigation indicates that the boron nitride nanocone can be a promising candidate as a field emission electron source.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
C.Q. Qu, L. Qiao, C. Wang, S.S. Yu, W.T. Zheng, Y.Z. Fu, Q. Jiang,