Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
80 (2002), S. 1394-1396
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
First-principles pseudopotential plane-wave calculations are used to investigate the electronic properties of InxGa1−xN alloys. The alloys are described within a cluster-expansion method considering configurations in large 64-atom supercells. The unusual behavior of the gap bowing is discussed as a function of composition. We show that the strongest contribution to the gap bowing is due to a structural effect, i.e., the composition-induced disorder in the bond lengths. We explain the observed huge Stokes shifts by band gap variations due to composition fluctuations and phase separation. © 2002 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1448853
Permalink
Library |
Location |
Call Number |
Volume/Issue/Year |
Availability |