Abstract
Atomic Force Microscopy (AFM) mechanical lithography is a simple but significant method for nanofabrication. In this work, we used this method to construct nanostructures on Pt/Cu bilayer metal electrodes under ambient conditions in air. The influence of various scratch parameters, such as the applied force, scan velocity and circle times, on the lithography patterns was investigated. The Pt-Cu-Cu x O-Cu-Pt nanostructure was constructed by choosing suitable scratch parameters and oxidation at room temperature. The properties of the scratched regions were also investigated by friction force microscopy and conductive AFM (C-AFM). The I–V curves show symmetric and linear properties, and Ohmic contacts were formed. These results indicate that AFM mechanical lithography is a powerful tool for fabricating novel metal-semiconductor nanoelectronic devices.
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Tseng A A, Notargiacomo A, Chen T P. Nanofabrication by scanning probe microscope lithography: A review. J Vac Sci Tech B, 2005, 23(3): 877–894
He G H, Yang X H. The progress on nanofabrication based on scanning probe microscopy. Microelectronics, 2005, 35(2): 169–173
Zhu J M, Zhang H J, Zhang D X. The design of AFM nanofabrication system. Opt Instrum, 2005, 27(2): 76–79
Magno R, Bennett B R. Nanostructure patterns written in III–V semiconductors by an atomic force microscope. Appl Phys Lett, 1997, 70(14): 1855–1857
Muller M, Fiedler T, Groger R. Controlled structuring of mica surfaces with the tip of an atomic force microscope by mechanically induced local etching. Surf Interf Anal, 2004, 36: 189–192
Filho H D F, Mauricio M H P, Ponciano C R. Metal layer mask patterning by force microscopy lithography. Mater Sci Eng B, 2004, 112: 194–199
Gnecco E, Bennewitz R, Meyer E. Abrasive wear on the atomic scale. Phys Rev Lett, 2002, 88(21): 215501-1–4
Song J Q, Liu Z F, Li C Z. SPM-based nanofabrication using asynchronization technique. Appl Phys A, 1998, 66: 715–717
Schumacher H W, Keyser U F, Zeitler U. Controlled mechanical AFM machining of two-dimensional electron systems: Fabrication of a single-electron transistor. Phys E, 2000, 6(4): 860–863
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Supported by the National Natural Science Foundation of China (Grant No. 90306010), the Program for New Century Excellent Talents in University of China (Grant No. NCET-04-0653), the National Basic Research Program of China (Grant No. 2007CB616911), and the Science and Technology Department of Henan Province (Grant No. 072300420100)
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Zhu, X., Cheng, G., Wang, S. et al. Fabrication of metal oxide nanostructures based on Atomic Force Microscopy lithography. Sci. China Ser. G-Phys. Mech. Astron. 51, 1448–1454 (2008). https://doi.org/10.1007/s11433-008-0155-x
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DOI: https://doi.org/10.1007/s11433-008-0155-x