Abstract
The synthesis of CdS nanoclusters in the pore structure of different zeolites and zeotypes has been performed through cationic exchange and subsequent sulfidation. Diffuse reflectance and fluorescence spectroscopy (luminescence and excitation of luminescence) have been carried out in order to determine the blue shift induced by quantum confinement. The results obtained are discussed in terms of the embodiment of the CdS cubes in different environmental frameworks and compared with theoretical estimates based on the effective mass approximation. Here we also show preliminary results of the softening of the Raman active mode of Ge nanostructures synthesized within the mesopores of Na (Ge Si) -X zeolite.
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