Isoelectronic bound exciton emission from Si-rich silicon-germanium alloys

Modavis, R. A. ; Hall, D. G. ; Bevk, J. ; Freer, B. S. ; Feldman, L. C. ; Weir, B. E.

Woodbury, NY : American Institute of Physics (AIP)
Published 1990
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report the observation and characterization of luminescence in the wavelength range 1.1 μm〈λ〈 1.4 μm from silicon-rich silicon-germanium alloys, grown by molecular beam epitaxy, implanted with beryllium atoms. The luminescence originates with the radiative decay of an exciton bound to an isoelectronic impurity complex. The wavelength of this emission can be controlled by varying the Ge concentration.
Type of Medium:
Electronic Resource
URL: