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5 March 2022 Charged exciton in a ZnO/(Zn,Mg)O quantum well: toward spintronic applications
Henryk Teisseyre, Marcin Muszynski, Kamil Sobczak, Jan Suffczynski
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Proceedings Volume PC12002, Oxide-based Materials and Devices XIII; PC120020W (2022) https://doi.org/10.1117/12.2615627
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
We report on the binding energy of a charged exciton (trion) confined in a single, epitaxially grown 1.7nm thick ZnO/(Zn,Mg)O quantum well as large as 22 meV or 27.6 meV when determined in micro-photoluminescence or transmission measurements, respectively. The attribution of the lines is further confirmed by the magnetic field dependences of the emission intensity. Charged exciton emission is found to persist up to near room temperature. The QW width was determined from high resolution transmission electron microscopy measurements. The binding energy comparable to thermal energy at room temperature is promising for trion based spintronic and optoelectronic applications.
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Henryk Teisseyre, Marcin Muszynski, Kamil Sobczak, and Jan Suffczynski "Charged exciton in a ZnO/(Zn,Mg)O quantum well: toward spintronic applications", Proc. SPIE PC12002, Oxide-based Materials and Devices XIII, PC120020W (5 March 2022); https://doi.org/10.1117/12.2615627
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KEYWORDS
Quantum wells
Excitons
Spintronics
Optoelectronics
Temperature metrology
Zinc oxide
Optoelectronic devices
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