Resonant and nonresonant vibrational and electronic excitations in trimethylaluminum adsorbed on GaAs
Article Abstract:
High-resolution electron energy loss spectroscopy is used in examining the vibrational and electronic excitations of trimethylaluminum (Me3Al) adsorbed on GaAs(100) films. Results indicate that a resonance scattering mechanism during the formation of a temporary ion is responsible for the the C-H vibration modes of the adsorbed Me groups. Strong vibration has been observed at 4, 8 and 14 eV with several overtone and combination bands. Vibration due to the adsorbed CH2 was also observed at energies higher than 10 eV.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Photophysics of PTCDA and Me-PTCDI thin films: Effects of growth temperatures
Article Abstract:
The effect of deposition temperature on the photophysical properties of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) and N,N-dimethylperylene-3,4,9,10-bis(dicarboximide) (Me-PTCDI) films was investigated. The structural and morphological results confirm an increase in the size and quality of the observed crystallites with growth temperature while spectroscopic studies suggest that these structural changes result in increased adsorption due to charge transfer species and enhanced emission.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Vibrational excitation mechanisms in electron energy loss spectroscopy studies of hydrogen adsorbed on Si(100) and Ge(100)
Article Abstract:
Issues concerning the adsorption of atomic hydrogen on Si(100) and Ge(100) are discussed. It was established that, for the Si(100) surface, the bending and scissor modes for both the monohydride and dihydride phases are excited mainly by dipolar excitation.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Fabrication and electrochemical application of three-dimensional gold nanoparticles: Self-assembly. AuPd metal nanoparticles as probes of nanoscale thermal transport in aqueous solution
- Abstracts: Screening and surface states in molecular monolayers adsorbed on silicon. Elucidating Si-Si dimmer vibration from the size-dependant Raman shift of nanosolid Si
- Abstracts: Electron paramagnetic resonance structure investigation of copper complexation in a hemicarcerand. Density functional study of EPR parameters and spin-density distribution of azurin and other blue copper proteins
- Abstracts: Conformational selectivity of peptides for single-walled carbon nanotubes. pH-dependent stability of decalysine alpha-helix studied by explicit-solvent molecular dynamics simulations at constant pH
- Abstracts: Modification of MCM-41 by surface silylation with trimethylchlorosilane and adsorption study. Thickness and stability of adsorbed film in cylindrical mesopores