scholarly journals An Analytical Study on the Local Electronic Density of States of the Valence Bands in Amorphous Silicon Carbide

1998 ◽  
Vol 21 (3) ◽  
pp. 217-219 ◽  
Author(s):  
M. A. Grado-Caffaro ◽  
M. Grado-Caffaro
Keyword(s):  
Silicon Carbide ◽  
Amorphous Silicon ◽  
Valence Band ◽  
Density Of States ◽  
Analytical Study ◽  
Electronic Density ◽  
Amorphous Silicon Carbide ◽  
Electronic Density Of States ◽  
Valence Bands ◽  
Hybrid Orbitals

A formulation for the energy-averaged local valence band density of states of amorphous silicon carbide is derived. To this end,sp3-type hybrid orbitals are employed.

Electronic density of states and the x-ray photoelectron spectra of the valence band of Cu-Pd alloys

1986 ◽  
Vol 33 (4) ◽  
pp. 2370-2379 ◽  
Author(s):  
H. Winter ◽  
P. J. Durham ◽  
W. M. Temmerman ◽  
G. M. Stocks
Keyword(s):  
Valence Band ◽  
Density Of States ◽  
Photoelectron Spectra ◽  
Electronic Density ◽  
X Ray ◽  
Electronic Density Of States

A Unified Description of the Density of States for Hydrogen and Electrons in Amorphous Silicon

1994 ◽  
Vol 336 ◽  
Author(s):  
S.C. Deane ◽  
M.J. Powell
Keyword(s):  
Amorphous Silicon ◽  
Density Of States ◽  
Correlation Energy ◽  
Dangling Bond ◽  
Hydrogen Binding ◽  
Electronic Density ◽  
Hydrogen Density ◽  
Electronic Density Of States ◽  
Defect Sites ◽  
Pool Model

ABSTRACTWe derive the hydrogen density of states for hydrogenated Amorphous silicon (a-Si:H), which is completely consistent with the electronic density of states for the defect pool model. If silicon dangling bond energies are distributed in energy, as in a defect pool model, then the hydrogen density of states becomes quite complex, with the hydrogen binding energy dependent on the Fermi level and dangling bond transition energy. We demonstrate that the electronic density of states for dangling bonds is almost identical to our previous defect pool model, while the hydrogen density of states can account for the results of hydrogenation-dehydrogenation experiments. The effective hydrogen correlation energy is variable, being negative for most hydrogen binding sites, but positive for most defect sites.

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