Abstract
AgxCdyS nanoparticles were obtained in arachidic acid (AA) monolayer containing Ag+ and Cd2+ under H2S flow. The AA/AgxCdyS monolayers were deposited onto solid substrate to prepare LB films. The UV-vis spectrum showed that the LB film exhibited notable quantum-size effect. The small-angle X-ray diffraction revealed periodic structure of the LB films. The molar ratio of Ag to Cd in AA/AgxCdyS film was ca. 1 : 5 as measured by the XPS. TEM and FTIR spectroscopy showed that the head-groups of arachidic acid molecules controlled formation of AgxCdyS nanoparticles in the monolayer.
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