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VOLUME 18 (1973) | ISSUE 9 | PAGE 579
Biexciton in CdS spectrun. Induced radiative decay of exciton-impurity complexes
It is shown that the emission bands produced by strong optical excitation in CdS crystals at low temperatures, and ascribed by some authors to biexcitons and to collisions between them, are actually connected with induced raidative decay of electron-impurity complexes (EIC) with emission of long-wave acoustic phonons.