Evidence of exciton complexes in non polar ZnO/(Zn,Mg)O A-plane quantum well

被引：9

作者：

Ali, Mohammed Jassim Mohammed ^{[1
,2
]}

Chauveau, J. M. ^{[3
]}

Bretagnon, T. ^{[1
]}

机构：

[1] Univ Montpellier, CNRS, Lab Charles Coulomb L2C, UMR 5221, Montpellier, France

[2] Univ Al Mustansiriyah, Fac Sci, Phys Dept, Baghdad, Iraq

[3] CNRS, CRHEA, Rue Bernard Gregory, F-06560 Valbonne, France

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2018年 / 120卷

关键词：

ZnO; Exciton; Trion; Biexciton; Optical properties; Nonpolar; Quantum well; NEGATIVELY CHARGED EXCITONS; BIEXCITON EMISSION; ELECTRON-GAS; ZNO FILMS; PHOTOLUMINESCENCE; THERMODYNAMICS; RECOMBINATION; SPECTROSCOPY; MOLECULES; TRIONS;

D O I：

10.1016/j.spmi.2018.05.067

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Excitons complexes in ZnO/(Zn, Mg)O non-polar quantum well have been studied by using continuous-wave photoluminescence according to temperature and to the density of excitation. The spectrum of photoluminescence of the quantum well consists of three different lines. The ratio between the intensities of these lines depends of the temperature but also of the density of excitation. The lines are attributed to the free exciton, the negatively charged trion and the biexciton. The binding energy of trion and biexciton are found to be respectively 19.5 +/- 2 meV and 45 +/- 5 meV.

引用

页码：410 / 418

页数：9

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