CHARACTERIZATION OF GERMANIUM NANOWIRES SYNTHESIZED USING COPPER AS CATALYST METAL

Scattering cross section of metal catalyst atoms in silicon nanowires

Photoluminescence of CdSe Nanowires Grown With and Without Metal Catalyst

The crystal phase of Au-NWs is assessed by means of high-resolution transmission electron microscopy (HR-TEM). NWs are dispersed on a transmission electron microscopy (TEM) grid and imaged with a JEOL 4000EX-II TEM. Figure S-2(a) shows a HR-TEM lattice imaging of a representative Au-NW. The measured interplanar spacing (3.74 Å) is consistent with the (110) planes of a CdSe crystal with the wurt...

Characterization of DNA-Templated Metal Nanowires DNA molecules as templates for ultrathin metallic nanowires

Suspended molecules of DNA are used as substrates for deposition of various metals by DC sputtering. The result is the formation of metallic nanowires, most with diameters of 10-50 nm. Homogeneous wires have been observed when a proper metal is chosen. For the first time, these DNA-templated nanowires are fabricated on substrates conducive to transmission electron microscopy. TEM and SEM analys...

Au/Ag bilayered metal mesh as a si etching catalyst for controlled fabrication of si nanowires.

Au/Ag bilayered metal mesh with arrays of nanoholes were devised as a catalyst for metal-assisted chemical etching of silicon. The present metal catalyst allows us not only to overcome drawbacks involved in conventional Ag-based etching processes, but also to fabricate extended arrays of silicon nanowires (SiNWs) with controlled dimension and density. We demonstrate that SiNWs with different mo...

Catalyst-Free Synthesis and Characterization of Metastable Boron Carbide Nanowires

Catalyst-free growth of boron carbide nanowires is achieved by pyrolysis of diborane and methane at 650–750 -C and around 500 mTorr in a quartz tube furnace. Electron-diffraction analysis using a novel diffraction-scanning transmission electron microscopy (D-STEM) technique indicates that the crystalline nanowires are single-crystal orthorhombic boron carbide. TEM images show that the nanowires...