Study of the band alignment in (Zn, Cd)Se/ZnSe quantum wells by means of photoluminescence excitation spectroscopy

被引：4

作者：

Guénaud, C

Deleporte, E

Filoramo, A

Lelong, P

Delalande, C

Morhain, C

Tournié, E

Faurie, JP

机构：

[1] Ecole Normale Super, Phys Mat Condensee Lab, F-75231 Paris 05, France

[2] CNRS, CRHEA, F-06560 Valbonne, France

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 04期

关键词：

D O I：

10.1063/1.372105

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on photoluminescence excitation spectroscopy performed on several (Zn, Cd)Se/ZnSe quantum wells at low temperature. Experimental results are compared with a calculation of the heavy- and light-hole excitonic transition energies. It is shown that the energy difference between the first heavy- and light-hole transitions E1H1 and E1L1 can be very sensitive to the valence-band offset under some circumstances, making a determination of this parameter then possible. The strain-free relative valence-band offset is found q(v)(0) = 13% +/- 2%. The heavy-hole excitons are type-I excitons, whereas the light-hole excitons are type-II excitons. (C) 2000 American Institute of Physics. [S0021-8979(00)03804-4].

引用

页码：1863 / 1868

页数：6

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