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Structures and electrical properties of Ag-tetracyanoquinodimethane organometallic nanowires

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7 Author(s)
Zhiyong Fan ; Dept. of Chem. Eng. & Mater. Sci., Univ. of California, Irvine, CA, USA ; Xiaoliang Mo ; Chengfei Lou ; Yan Yao
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Ag-tetracyanoquinodimethane (Ag-TCNQ) nanostructures are synthesized using both solution reaction in acetonitrile and a novel vacuum-saturated vapor reaction method. Experiments show that the latter synthesis method produces Ag-TCNQ nanowires with better uniformity and higher aspect ratio. These nanowires, having diameters around 100 nm and lengths about 5 μm, could serve as potential building blocks of nanoscale electronics. Nanodevices based on these nanowires are fabricated using the electron-beam lithography technique. Electrical transport study shows reproducible I--V hysteresis with a change in resistance of four orders of magnitude, demonstrating electrical memory effect. This electrical bistability makes Ag-TCNQ nanowires a promising candidate for future applications in ultrahigh-density information storage.

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IEEE Transactions on Nanotechnology  (Volume:4 ,  Issue: 2 )