A. Mews et al., STRUCTURAL AND SPECTROSCOPIC INVESTIGATIONS OF CDS HGS/CDS QUANTUM-DOT QUANTUM-WELLS/, Physical review. B, Condensed matter, 53(20), 1996, pp. 13242-13245
Epitaxial growth in a CdS/HgS heterostructure of nanometer dimensions,
prepared by methods of wet chemistry, is demonstrated. High-resolutio
n 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 investig
ated by transient hole burning and fluorescence line-narrowing spectro
scopy. The photophysical measurements provide evidence for charge-carr
ier localization within the HgS well.