Abstract
The excitonic spin polarization in dependence of the size of semiconductor quantum well (QW) was investigated by observing the two different circular polarizations of photoluminescence (PL). From the measurements of PL in QWs, it was found that there is a difference between the two different polarization conditions, which is caused by spin-dependent phase-space filling. The PL spin polarization was estimated from the signals of the left and right circularly polarized PL and was found to depend on the size of the wells as well as on the strength of the bias field. The effects of the size of the well and applied electric field on the excitonic PL spin polarization were studied.
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Miah, M.I. Size effect of semiconductor quantum wells in excitonic spin generation under drift. Optoelectron. Lett. 16, 318–320 (2020). https://doi.org/10.1007/s11801-020-9108-z
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DOI: https://doi.org/10.1007/s11801-020-9108-z