D. Bimberg, M. Altarelli, et al.
Solid State Communications
The free-exciton series n=1,2,3 in high-purity GaAs has been observed in photoluminescence and photoconductivity. The n=1 peak shifts upon changing the excitation level because of free-carrier screening. Anisotropy and exchange effects as well as two valence bands must be included to interpret the series spectrum of this Wannier-like exciton. New values are derived for the band gap at 1.6 K (Eg=1.5189±0.0001 eV) and for the n=1 excitonic binding energy [EX(1s)=3.77±0.05 meV]. © 1972 The American Physical Society.
D. Bimberg, M. Altarelli, et al.
Solid State Communications
W. Schairer, M.W. Shafer
physica status solidi (a)
H.P. Meier, E. Van Gieson, et al.
Applied Physics Letters
H.P. Meier, E. Van Gieson, et al.
Journal of Crystal Growth