Tight-binding parameters for silicon-boron interactions with application to boron-defect pairs in crystalline silicon

1996 ◽  
Vol 73 (1) ◽  
pp. 71-84 ◽  
Author(s):  
Paul B. Rasband ◽  
Andrew P. Horsfield ◽  
Paulette Clancy
1995 ◽  
Vol 396 ◽  
Author(s):  
M. tang ◽  
L. colombo ◽  
T. Diaz De La Rubia

AbstractTight-binding molecular dynamics (TBMD) simulations are performed (i) to evaluate the formation and binding energies of point defects and defect clusters, (ii) to compute the diffusivity of self-interstitial and vacancy in crystalline silicon, and (iii) to characterize the diffusion path and mechanism at the atomistic level. In addition, the interaction between individual defects and their clustering is investigated.


2011 ◽  
Vol 84 (15) ◽  
Author(s):  
L.-C. Tung ◽  
P. Cadden-Zimansky ◽  
J. Qi ◽  
Z. Jiang ◽  
D. Smirnov

1997 ◽  
Vol 486 ◽  
Author(s):  
G. Allan ◽  
C. Delerue ◽  
M. Lannoo

AbstractThe electronic structure of amorphous silicon layers has been calculated within the empirical tight binding approximation using the Wooten-Winer-Weaire atomic structure model. We predict an important blue shift due to the confinement for layer thickness below 3 nm and we compare with crystalline silicon layers. The radiative recombination rate is enhanced by the disorder and the confinement but remains quite small. The comparison of our results with experimental results shows that the density of defects and localized states in the studied samples must be quite small.


1994 ◽  
Vol 49 (16) ◽  
pp. 10918-10925 ◽  
Author(s):  
Marcel H. F. Sluiter ◽  
Prabhakar P. Singh

1997 ◽  
Vol 491 ◽  
Author(s):  
C. Z. Wang ◽  
B. C. Pan ◽  
M. S. Tang ◽  
H. Haas ◽  
M. Sígalas ◽  
...  

ABSTRACTWe have developed a tight-binding model which goes beyond the traditional two-center approximation and allows the tight-binding parameters to scale according to the bonding environment. Our studies show that this environment-dependent tight-binding model improves remarkably the accuracy and transferability of the potential to describe the structures and properties of higher coordinated metallic systems in addition to those of low coordinated covalent systems.


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