TY - JOUR
T1 - Electronic quantum dot states induced through photon emission
AU - Schulhauser, C.
AU - Högele, A.
AU - Warburton, R. J.
AU - Govorov, A. O.
AU - Karrai, K.
AU - Garcia, J. M.
AU - Gerardot, B. D.
AU - Petroff, P. M.
PY - 2004
Y1 - 2004
N2 - We review the optics of negatively charged excitons in self assembled InAs/GaAs quantum dots. The charging state of a quantum dot was tuned electrostatically in a field effect structure. We investigated in this way the neutral exciton as well as the negatively singly, doubly and triply charged excitons, namely the X0, X1-, X2- and X 3- excitons. A Zeeman splitting and a diamagnetic shift in the photoluminescence emission line is clearly observed for X0, X 1- and X2- exciton as a function of magnetic field. In contrast the triply negatively charged exciton shows a completely different magnetic behaviour. Here, under the influence of a high magnetic field, the quantum dot electronic states are found to be hybridized with the continuum of states in the wetting layer. Such a hybridization turns out to be induced by photon emission of the X3- exciton. © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
AB - We review the optics of negatively charged excitons in self assembled InAs/GaAs quantum dots. The charging state of a quantum dot was tuned electrostatically in a field effect structure. We investigated in this way the neutral exciton as well as the negatively singly, doubly and triply charged excitons, namely the X0, X1-, X2- and X 3- excitons. A Zeeman splitting and a diamagnetic shift in the photoluminescence emission line is clearly observed for X0, X 1- and X2- exciton as a function of magnetic field. In contrast the triply negatively charged exciton shows a completely different magnetic behaviour. Here, under the influence of a high magnetic field, the quantum dot electronic states are found to be hybridized with the continuum of states in the wetting layer. Such a hybridization turns out to be induced by photon emission of the X3- exciton. © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
UR - http://www.scopus.com/inward/record.url?scp=3142680116&partnerID=8YFLogxK
U2 - 10.1002/pssc.200404766
DO - 10.1002/pssc.200404766
M3 - Literature review
SN - 1862-6351
VL - 1
SP - 2079
EP - 2093
JO - Physica Status Solidi C - Current Topics in Solid State Physics
JF - Physica Status Solidi C - Current Topics in Solid State Physics
IS - 8
ER -