Abstract
We conducted a detailed investigation of the potential structure within GaNAs/GaAs multiple quantum wells (MQWs) using three independent experimental techniques: the temperature dependence of Photo-luminescence (PL) spectroscopy, time-resolved PL spectroscopy, and degenerate four-wave mixing (DFWM) measurements. We observed a very long lifetime (T1 = 12 ns) and dephasing time (T2 = 130 ps) of excitons in the GaNAs/GaAs MQWs. We suggested that the GaNAs/GaAs MQWs have a strong and deep confinement structure that is comparable to that of quantum dots. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Goshima, K., Kittaka, A., Fujii, K., Shiraga, M., Tsurumachi, N., Nakanishi, S., … Itoh, H. (2011). Investigation of the confinement potential within GaNAs/GaAs multiple quantum wells. Physica Status Solidi (C) Current Topics in Solid State Physics, 8(2), 414–416. https://doi.org/10.1002/pssc.201000587
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