Abstract
High-quality, nano-sized clusters of TiS 2 have been grown successfully inside inverse micellar cages and their optical properties studied. The clusters exhibit large blueshifts in the optical-absorption features with decreasing cluster size due to quantum confinement, affording control of the absorption thresholds and a demonstration of the crossover from band-like to molecule-like spectra as the size of the clusters becomes smaller than that of the exciton in the bulk.
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