“…the exciton binding energy in bulk ZnSe is 20 meV). Modification of the optical spectra of modulation-doped quantum wells (QW) containing a 2DEG has been the subject of extensive theoretical [2,3,4,5,6,7,8,9,10] and experimental studies [11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27].…”