Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 157, Issue 12, Pages D624-D627Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3499352
Keywords
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Funding
- National Natural Science Foundation of China [90406013]
- Shanghai Pujiang Program [05PJ14065]
- Shanghai Nanotechnology Promotion Center [0452nm030]
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Large-scale nickel nanocones array are synthesized by a one-step electrodeposition method without any template. The size and apex angle of nanocone can be controlled by changing the current density and deposition time. The mechanism of the formation of nanocones array morphology has been discussed. This nanocones array shows very good field emission properties with low turn-on field of 5-6.7 V/mu m (corresponding to an emission current of 1 mu A) and large currents of 155-206 mu A. The shape and density of the nanocones significantly affect the field emission properties. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3499352] All rights reserved.
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