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
Field Emission from an Array of Free-standing Metallic Nanowires
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
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.
(Field emitters and arrays, cold electron emitters)
引用本文:
ZHANG Geng-Min;Emmanuel ROY;LIU Hong-Wen;LIU Wei-Min;HOU Shi-Min;Kui YU-ZHANG;XUE Zeng-Quan. Field Emission from an Array of Free-standing Metallic Nanowires[J]. 中国物理快报, 2002, 19(7): 1016-1018.
ZHANG Geng-Min, Emmanuel ROY, LIU Hong-Wen, LIU Wei-Min, HOU Shi-Min, Kui YU-ZHANG, XUE Zeng-Quan. Field Emission from an Array of Free-standing Metallic Nanowires. Chin. Phys. Lett., 2002, 19(7): 1016-1018.
2002, Vol. 19 
