Abstract
AbstractThe polarization dependent photoluminescence at low temperatures of strained semipolar and nonpolar InGaN quantum wells was studied as a function of the emission wavelength. We found for semipolar QWs that the maximum of the spectral resolved optical polarization is either red‐ or blue‐shifted with respect to the maximum of the emission.In contrast, the nonpolar emission exhibits no clear maximum. We assign all effects to an inhomogeneous broad‐ ening of the emission caused by indium fluctuations and explain this behavior here in the light of the optical polarization switching. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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