Spectroscopic detection of silylene in the infrared multiphoton decomposition of silane

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.93897· OSTI ID:6630641

O'Keefe, J F; Lampe, F W

Spectroscopic examination of the luminescence from SiH/sub 4/ and SiH/sub 4/-SiF/sub 4/ mixtures that are irradiated with an unfocussed, pulsed CO/sub 2/ infrared laser at a fluence of 0.75 J/cm/sup 2/ shows the emission to be due to the transitions SiH/sub 2/(/sup 1/B/sub 1/, ..nu..' = 2, 3) ..-->..SiH/sub 2/(/sup 1/A/sub 1/, ..nu..'' = 1) and thus clearly demonstrates the presence of SiH/sub 2/ in the decomposing gas. The form of the time dependence of the emission is determined by the collisional energy pooling processes that produce highly excited SiH/sub 4/ molecules and does not permit an assessment of the lifetime of the /sup 1/B/sub 1/ state of SiH/sub 2/.

• Research Organization: Davey Laboratory, Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802
• DOE Contract Number: AC02-76ER03416
• OSTI ID: 6630641
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 42:3; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CARBON DIOXIDE LASERS
CHEMICAL REACTIONS
COLLISIONS
DATA
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
GAS LASERS
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
INFRARED RADIATION
LASERS
LIFETIME
LUMINESCENCE
MASSLESS PARTICLES
MATHEMATICAL MODELS
NUMERICAL DATA
PHOTONS
RADIATION EFFECTS
RADIATIONS
SILANES
SILICON COMPOUNDS
SPECTRA
SPECTROSCOPY
TIME DEPENDENCE