Biexcitons in the emission spectrum of uniaxially deformed silicon
Kulakovskii V.D., Timofeev V.S.
A new line corresponding to the radiative decay of a biexciton was observed in the emission spectrum of Si elastically deformed along the <100) axis at large excitation densities and at low temperatures. The binding energy of the biexciton is estimated at As 1.3 meV.