Abstract
The surface electronic properties of CdSe nanocrystallites have been probed using low temperature and Zeeman spectroscopies. Fluorescence line narrowed spectra show dramatic changes between 1.75 and 10 K and also as a function of applied magnetic field. These effects are attributed to the localization of the photogenerated charge carriers on the surface. A simple model has been constructed to calculate the charge distribution within the nanocrystallite.
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References
For references on recent theoretical works see for example Brus, L.E., Appl. Phys.A 53, 465 (1991).
Bawendi, M.G., Carroll, P.J., Wilson, William L., and Brus, L.E., J. Chem. Phys.96, 946 (1992).
O'Neil, M., Marohn, J., and Mclendon, G., J. Phys. Chem.,89, 3435 (1990).
Eychmuller, A., Hasselbrath, A., Katsikas, L., and Weller, H., Ber. Bunsenges. Phys. Chem.,95, 79 (1991).
Alivisatos, A.P., Harris, T.D., Carroll, P.J., Steigerwald, M.L., and Brus, L.E., J. Chem. Phys.90, 3463 (1989).
Mott, N.F., and Davis, E.A.,Electronic Processes in Non-Crystalline Materials (Clarendon, Oxford 1971).
Klein, M.C., Hache, F., Ricard, D., and Flytzanis, C., Phys. Rev. B42, 11123 (1990).
Nomura, S., and Kobayashi, T., Phys. Rev. B45, 1305 (1992).