- INST PURE APPLIED PHYSICS
By using the plasma-enhanced chemical vapor deposition (PE-CVD) under near-atmospheric pressures, we have achieved a high rate growth, 1 nm/s, of polycrystalline, Si films on glass substrates without incubation layers for the first time. We have employed a short-pulse based system for a stable operation of discharge at atmospheric pressures without inert gas dilution. This feature enabled us to employ an extremely high dilution of monosilane by hydrogen, which should be the origin of the incubation-free growth of our films, in addition to the basic advantage for the high rate growth inherent in atmospheric reaction systems. The films are mainly consisted of polycrystalline Si with grain size ranging from 5 nm to above 10 nm, as observed by Raman scattering, X-ray diffractions and cross sectional transmission electron microscopy.
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