Negatively charged exciton X and donor bound exciton D0X in planar doped CdTe/Cdl-xZnxTe quantum well heterostructures

Kuntheak Kheng , R. Cox , M. Mamor , K. Saminadayar , Serge Tatarenko

A comparative luminescence and magneto-transmission study is made of donor bound excitons DoX and negatively charged excitons X- in planar doped CdTe/Cd1-xZnxTe quantum wells of 100Å width. As the dopant plane is removed from the well centres to 450Å distance in the barriers, DoX evolves continuously into an X- species weakly localised in random potential fluctuations. The exciton localisation energy in DoX transforms into the second electron's binding energy in X-.

Domaines: Articles anciens

Kuntheak Kheng, R. Cox, M. Mamor, K. Saminadayar, Serge Tatarenko. Negatively charged exciton X and donor bound exciton D0X in planar doped CdTe/Cdl-xZnxTe quantum well heterostructures. Journal de Physique IV Proceedings, 1993, 03 (C5), pp.C5-95-C5-98. ⟨10.1051/jp4:1993517⟩. ⟨jpa-00251603⟩