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Enhanced Field Emission of Composite Au Nanostructured Network n Si Nanoporous Pillar Array |
| FU Xiao-Nan 1,2;LI Xin-Jian2 |
| 1College of Science, Henan University of Technology, Zhengzhou 4500522School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052 |
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| Cite this article: |
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FU Xiao-Nan, LI Xin-Jian 2007 Chin. Phys. Lett. 24 2335-2337 |
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Abstract Nanocrystallites Au particles are deposited on a well-aligned silicon nanoporous pillar array (Si-NPA) surface through immersion plating to form an Au/Si-NPA composite system. It is found that a large number of Au nanoparticles are accumulated on the bottom of Si pillars to form a regular network structure. By studying the field emission properties of such an Au/Si-NPA composite system, we find that the Au/Si-NPA exhibits good field emission properties, with staring field about 2V/μm and emission current density 67μA/cm2 at 7.59V/μm. The enhanced field emission can be deduced from the unique morphology and structure of Au/Si-NPA.
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| Keywords:
61.46.-w
79.70.+q
81.16.Be
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Received: 05 March 2007
Published: 25 July 2007
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| PACS: |
61.46.-w
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(Structure of nanoscale materials)
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79.70.+q
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(Field emission, ionization, evaporation, and desorption)
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81.16.Be
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(Chemical synthesis methods)
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