Resonance CARS detection of SiC2 as reaction intermediate in IR laser synthesis of SiC from SiH4/hydrocarbon mixtures |
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| Authors: | R. Fantoni F. Bijnen N. Djurić S. Piccirillo |
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| Affiliation: | (1) Dip. TIP, Divisione Fisica Applicata, C.R.E. Frascati, ENEA, C.P. 65, I-00044 Frascati Rome, Italy;(2) Present address: Institute of Physics, Zemun, Yugoslavia |
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| Abstract: | Coherent anti-Stokes Raman Scattering has been employed to investigate gas-phase reactions between SiH4 and small hydrocarbons leading to formation of SiC powder. SiC2 has been identified as reaction intermediate, due to the occurrence of resonance enhanced CARS coupling vibrational leavels in the ground and first electronically excited state. The rich structure observed in the range 4480 Å< AS<4650 Å is assigned to SiC2 taking into account the cyclic geometry of this species and revising former data on electronic transitions.ENEA Guest |
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| Keywords: | 33.20Fb |
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