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The first LIF spectrum of SiC

1991; Elsevier BV; Volume: 176; Issue: 3-4 Linguagem: Inglês

10.1016/0009-2614(91)90052-b

1873-4448

Maarten Ebben, Marcel Drabbels, J. J. ter Meulen,

Diamond and Carbon-based Materials Research

We report the first LIF spectrum of the SiC free radical. The SiC molecules are produced using pulsed-laser vaporization of silicon in combination with a supersonic expansion. The spectrum observed around 410 nm is assigned as C 3-PI(upsilon' = 3)-X 3-PI(upsilon = 0). The molecular constants in cm-1 are: nu-30 = 24399.5(1), A = -31.100(49) and B = 0.54088(75). The electronic lifetime of this upsilon' = 3 level is measured to be 805(50) ns.