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Addition/Correction: Carrier multiplication and its reduction by photodoping in colloidal InAs quantum dots

By J. J. H. Pijpers, E. Hendry, M.T.W. Milder, R. Fanciulli, J. Savolainen, J.L. Herek, D.A.M. Vanmaekelbergh, S. Ruhman, D. Mocatta, D. Oron, A. Aharoni, U. Banin and M. Bonn


In our earlier paper, we reported carrier multiplication (CM) in colloidal InAs quantum dots (QDs) and CM in dots with a pre-population of one exciton. The occurrence of CM in relaxed InAs QDs was concluded from the results of time-resolved TeraHertz (THz). Both THz and quasi-continuous wave (quasi-CW) experiments were performed to study the CM in pre-excited dots. Recent attempts to reproduce the observations of CM using THz spectroscopy on InAs based QDs of two sizes were unsuccessful. These attempts followed transient absorption measurements in Jerusalem by one of us (S. R.) and co-workers reported elsewhere, which have not yielded evidence for CM in these QDs

Year: 2008
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