Abstract
The effects of amide types drying control chemical additives on the morphologies, BET surface areas, pore sizes, crystal structures, and photoluminescence intensities of the Y 2 Ο 3 :Eu phosphor powders prepared by spray pyrolysis were investigated. The phosphor powders obtained from the spray solutions with N,N-dimethylacetamide (DMA) and N,N-dimethylformamide (DMF) had filled inner structures, low surface areas and high photoluminescence intensities under vacuum ultraviolet illumination. The photoluminescence intensity of the phosphor powders obtained from the spray solution with DMA was 120% of that of the phosphor powders obtained from the spray solution without drying control chemical additive.
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