Abstract
The electronic structure of dimerized trimethylaluminum (TM A), Al2 (CH3)6, condensed at low temperatures on clean substrates in ultrahigh vacuum, has been investigated using ultraviolet and x-ray photoelectron spectroscopies together with molecular orbital (MO) calculations carried out using the self consistent field Xa-scattered wave method. Valence band spectra revealed three broad peaks centered at ~15.0, 7.5, and 4.5 eV below the Fermi level. The peaks were assigned, based upon computed MO results, to correspond primarily to C(2s) + H(1s), C(2p)+ H(1s), and Al(3p) + C(2p) bonding orbitals, respectively, in dimerized TMA. The wave functions of the upper MO levels corresponding to the 4.5-eV peak were predominantly composed of Al(3p) orbitals.
Original language | English |
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Pages (from-to) | 3115-3119 |
Number of pages | 5 |
Journal | Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films |
Volume | 6 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1988 Nov |
Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films