Abstract
ABSTRACTMonodispersed CdSe nanocrystals with average diameter of ∼5 nm were synthesized from SeSO32− and rich Cd2+ ionic reagents in aqueous solution. Two-dimensional (2D) close-packed colloidal CdSe films were formed on the electrode surface by electric-field induced deposition method. Transmission electron microscopy (TEM) images show that colloidal CdSe films exhibit different states, named “gas”, “liquid” and “solid” states, which can be transformed by adjusting applied field (E) or deposition time (T). The experimental results demonstrate that the average nearest-neighbor distance of clusters on the electrode surface is inversely proportional to the ET product.
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