ФТП, 2007, том 41, выпуск 4

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Cathodoluminescence of laser AIIBVI heterostructures

A.S.Ivanov, V.I.Vasilev, I.V.Sedova, S.V.Sorokin,
A.A.Sitnikova, S.G.Konnikov, T.B.Popova, M.V.Zamoryanskaya

Ioffe Physicotechnical Institute, Russian Academy of Sciences,
194021 St. Petersburg, Russia

(Получена 16 октября 2006 г. Принята к печати 30 октября 2006 г.)

A cathodoluminescence (CL) method has been used for the studies of ZnSe-based heterostructures with CdSe fractional-monolayer recombination region. Electron beams with the energies of 1-25 keV provides the ability to analyze the CL bands associated with the different layers of the heterostructure and revealed on the CL spectrum at different electron beam penetration depth. The comparative analyses of the CL bands both from the recombination region and the upper layers have been used to characterize the transport properties of the structure. The correlation between the density and size distribution of quantum dots and full width on the half of maximum and spectral position of the CL bands has been studied in detail.

PACS: 78.60.Hk, 73.40.Lq, 73.63.Kv

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