Structural and spectroscopic investigations of CdS/HgS/CdS quantum-dot quantum wells

A. Mews, A. Kadavanich, U. Banin, A. Alivisatos

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276 Scopus citations


Epitaxial growth in a CdS/HgS heterostructure of nanometer dimensions, prepared by methods of wet chemistry, is demonstrated. High-resolution transmission-electron microscopy is used to determine the shape and crystallinity of this system consisting of a quantum well in a quantum dot. The homogeneous absorption and fluorescence spectra are investigated by transient hole burning and fluorescence line-narrowing spectroscopy. The photophysical measurements provide evidence for charge-carrier localization within the HgS well.

Original languageAmerican English
Pages (from-to)R13242-R13245
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number20
StatePublished - 1996
Externally publishedYes


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