Synthesis of gold-silica composite nanowires through solid-liquid-solid phase growth.
Nanoscale wires of silicon oxide, and silicon oxide with embedded gold-silicide nanospheres, are synthesized by heating of a gold-coated silicon wafer at temperatures of 1000 degrees C or above, with the resulting wires having diameters ranging from 30 to 150 nm and lengths of approximately 1 mm. This simple fabrication process should make possible economical bulk production of nanowires. Studies indicate that the growth of these gold-silica composite nanowires occurs directly on the silicon wafer by a solid-liquid-solid mechanism.
Department of Electrical Engineering & Materials Research Institute, 217 Materials Research Laboratory, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Maggie
M
Paulose
Oomman K
OK
Varghese
Craig A
CA
Grimes
D003460:Crystallization / Q000379:methods*; D006046:Gold / Q000737:chemistry*; D006358:Hot Temperature; D046911:Macromolecular Substances; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010087:Oxides / Q000737:chemistry*; D012666:Semiconductors; D017655:Silicon Compounds / Q000737:chemistry*; D013499:Surface Properties
D046911:Macromolecular Substances; D010087:Oxides; D017655:Silicon Compounds; C116473:silicon monoxide; D006046:Gold