| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5368926 | Applied Surface Science | 2009 | 4 Pages |
Abstract
Nano-structured phosphorus-doped diamonds were fabricated for field emitters and their field emission properties were characterized. Two kinds of nano-structures were prepared; tip array structures and whiskers on tip structures. The tips, which have 100 nm radius and 10 μm height, are used in tip array structures; whiskers have tip radii of 5 nm and height of 500 nm. Following nano-structure formation, a reduction of threshold fields is observed compared to non-patterned flat surfaces. This is ascribed to field concentration at the tips. However, at higher electric fields, a saturation of the emission current is observed due to non-negligible bulk resistances in tips and whiskers.
Related Topics
Physical Sciences and Engineering
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Physical and Theoretical Chemistry
Authors
Takatoshi Yamada, Christoph E. Nebel, Shin-ichi Shikata,