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Ding, F. (author), Akopian, N. (author), Li, B. (author), Perinetti, U. (author), Govorov, A. (author), Peeters, F.M. (author), Bof Bufon, C.C. (author), Deneke, C. (author), Chen, Y.H. (author), Rastelli, A. (author), Schmidt, O.G. (author), Zwiller, V. (author)We report on a magnetophotoluminescence study of single self-assembled semiconductor nanorings which are fabricated by molecular-beam epitaxy combined with AsBr3 in situ etching. Oscillations in the neutral exciton radiative recombination energy and in the emission intensity are observed under an applied magnetic field. Further, we control the...journal article 2010
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Ding, F. (author), Singh, R. (author), Plumhof, J.D. (author), Zander, T. (author), K?ápek, V. (author), Chen, Y.H. (author), Benyoucef, M. (author), Zwiller, V. (author), Dörr, K. (author), Bester, G. (author), Rastelli, A. (author), Schmidt, O.G. (author)We study the effect of an external biaxial stress on the light emission of single InGaAs/GaAs(001) quantum dots placed onto piezoelectric actuators. With increasing compression, the emission blueshifts and the binding energies of the positive trion (X+) and biexciton (XX) relative to the neutral exciton (X) show a monotonic increase. This...journal article 2010