Vibrational effects in the Si 2p pre-edge photoabsorption spectroscopy of SiH4, SiD4, Si2H6 and Si3H8

✍ Scribed by D.G.J. Sutherland; G.M. Bancroft; J.D. Bozek; K.H. Tan

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 630 KB
• Volume: 199
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)80129-y

✦ Synopsis

High-resolution (0.05 eV) Si 2p pre-edge photoabsorption spectra of SiH,, SiD,, S&H6 and S&Ha have been recorded. The spectra show a large number of peaks due to Si 2pdRydberg transitions, along with rich vibrational structure. The spectrum of SiD4 has been very useful in determining the exact positions of Rydberg states and vibrational excitations from both symmetric and asymmetric Si-H (D) vibrational modes. The spectra of disilane and trisilane are very similar to each other, although the vibrational effects are much more apparent in the spectrum of disilane where both asymmetric Si-H and symmetric Si-Si vibrational progressions have been observed.