Chin. Phys. Lett.  2002, Vol. 19 Issue (7): 1016-1018    DOI:
Original Articles |
Field Emission from an Array of Free-standing Metallic Nanowires
ZHANG Geng-Min1;Emmanuel ROY2;LIU Hong-Wen1;LIU Wei-Min1;HOU Shi-Min1;Kui YU-ZHANG2;XUE Zeng-Quan1
1Department of Electronics, Peking University, Beijing 100871 2Dynamique des Transferts aux Interfaces (DTI-CNRS), Faculté des Sciences, Université de Reims, 51687 Reims Cedex 02, France
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ZHANG Geng-Min, Emmanuel ROY, LIU Hong-Wen et al  2002 Chin. Phys. Lett. 19 1016-1018
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Abstract Arrays of single crystalline gold nanowires were synthesized
electrochemically in porous polycarbonate membranes. The polycarbonate membrane was then removed to obtain freestanding nanowires for field emission measurements. The turn-on electric field strength for field emission is found to be lower than 2V/μm. The actual electric field that extracted electrons out of the gold nanowires is estimated to be about 103 times higher than the field directly expected in the model of a parallel plate condenser. The availability of the field emission is therefore attributed to the strong electric field at the tips resulting from small curvature radius of the gold nanowires.
Keywords: 79.70.+q      81.07.-b      85.45.Db     
Published: 01 July 2002
PACS:  79.70.+q (Field emission, ionization, evaporation, and desorption)  
  81.07.-b (Nanoscale materials and structures: fabrication and characterization)  
  85.45.Db (Field emitters and arrays, cold electron emitters)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I7/01016
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ZHANG Geng-Min
Emmanuel ROY
LIU Hong-Wen
LIU Wei-Min
HOU Shi-Min
Kui YU-ZHANG
XUE Zeng-Quan
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