Temperature Effects on Exciton and Trion States in CdTe Quantum Well Structures

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We study the temperature-dependent modifications of trion and exciton photoluminescence (PL) spectra in modulation-doped CdTe/CdMgTe quantum wells in high magnetic field. We find that, in magnetic field, the temperature-dependent redistribution of exciton and trion PL intensities is opposite to that expected from a simple Boltzmann distribution model. Solving a system of rate equations that describe the exciton-trion energy levels, we calculate the temperature dependence of the exciton and trion PL intensities. The calculations show good agreement with the experimental data.

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http://salesiana.dossiersoluciones.com/handle/123456789/122566

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0701594
 http://arxiv.org/abs/cond-mat/0701594

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arXiv