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

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

2007-01-24

arxiv.org/abs/cond-mat/0701594v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

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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