Field electron emission of carbon-based nanocone films

被引：28
作者：
Lu, X
Yang, Q
Xiao, C
Hirose, A
机构：
[1] Univ Saskatchewan, Plasma Phys Lab, Saskatoon, SK S7N 5E2, Canada
[2] Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 5A9, Canada
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2006年 / 82卷 / 02期
关键词：
D O I：
10.1007/s00339-005-3410-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diamond nanocone, graphitic nanocone, and mixed diamond and graphitic nanocone films have been synthesized through plasma enhanced hot filament chemical vapor deposition (HFCVD). The field emission properties of these films have been experimentally investigated. The studies have revealed that all three kinds of nanocone films have excellent field electron emission (FEE) properties including low turn-on electric field and large emission current at low electric field. Compared with the diamond nanocone films (emission current of 86 mu A at 26 V/mu m with the turn-on field of 10 V/mu m), the graphitic nanocone films exhibit higher FEE current of 1.8x10(2) stop mu A at 13 V/mu m and a lower turn-on filed of 4 V/mu m. The mixed diamond and graphitic nanocone films have been found to posses FEE properties similar to graphitic nanocone films (emission current of 1.7x10(2) stop mu A at 20 V/mu m with the turn-on field of 5 V/mu m), but have much better FEE stability than the graphitic nanocone films.
引用
收藏
页码：293 / 296
页数：4
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