Abstract
A novel process using chitosan containing ligand groups as a medium for forming ZnS clusters by an ion-coordination method is investigated for the first time. The ZnS clusters in the chitosan film have been identified by x-ray diffraction, ultraviolet - visible absorption and photoluminescence spectra. The ZnS cluster size was estimated to be about 2 - 6 nm, depending on the processing conditions. Blue luminescence for the undoped ZnS clusters was observed and its mechanism is briefly discussed.
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