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We present alternative routes for the production of silicon nanowires (SiNWs). We have successfully synthesized SiNWs by plasma enhanced chemical vapor deposition, high temperature annealing, and thermal evaporation. Selective growth is achieved by using a patterned catalyst. Bulk production of SiNWs can be achieved by thermal evaporation. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]

We calculate the effects of phonon confinement on the Raman spectra of Silicon nanowires. The theoretical predictions are checked by measuring the Raman spectra of SiNWs selectively grown by plasma enhanced chemical vapor deposition (PECVD) employing gold as a catalyst. In order to fully account for the measured spectra and their variation as a function of laser power, the standard confinement theory is extended to include anharmonic phonon processes. © 2003 American Institute of Physics [ABSTRACT FROM AUTHOR]