Pulsed UV laser Raman spectroscopy of silane in a linear-flow chemical vapor deposition reactor

Abstract
For the first time, spatially resolved relative concentrations of silane inside a chemical vapor deposition reactor have been measured with spontaneous Raman spectroscopy using the third harmonic of a Q-switched neodymium:yttrium aluminum garnet laser. Concentration profiles were obtained under both atmospheric and low total pressure conditions. Considerable depletion of silane in the gas phase was observed.