Growth and Electrical Characteristics of Platinum-Nanoparticle-Catalyzed Silicon Nanowires


  • This work was supported by the National Science Foundation under Grant No. EEC-0425914 and DARPA-MARCO. We would like to thank the National Center for Electron Microscopy, the Berkeley Microfabrication Lab, and E. E. Haller for use of their facilities. E.G. would like to thank Josh Goldberger, Ben Yuhas, Lori Greene, and Andrea Tao for help with imaging and Susan Habas for providing the Pt nanoparticles.


original image

Pt nanoparticle catalysts are used to synthesize Si nanowires. The standard deviations of the starting colloid and the resulting wire diameters are essentially the same, whereas the wires were 22 % larger than the particles. The figure shows current–voltage plots of a silicon nanowire different gate voltages.