Plasmon mechanism of the trion emission band broadening in quantum wells

Article

关键词: 2-DIMENSIONAL ELECTRON-GAS;    NEGATIVELY CHARGED EXCITONS;    ENERGY-LOSS;    ABSORPTION;   

DOI  :  10.1103/PhysRevB.83.235329

来源: SCIE

【 摘 要 】

The effects of charge-density fluctuations on negative trion states in a quantum well are considered for the case of intermediate doping by electrons at zero magnetic field. The quasi-two-dimensionality of the system and the trion-plasmon interaction are taken into account in the framework of the random-phase approximation. It is shown that the trion luminescence band has a complex structure consisting of a zero-plasmon line and a trion-plasmon wing. The structure is interpreted as a result of spatial inhomogeneity of the quantum wells.

【 授权许可】

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