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Lead strontium titanate(Pb_xSr_(1-x))TiO_3(x=0.4,0.6) nanotubes were synthesized by sol-gel template method via spin coating.The structures and morphology of the as-prepared samples were characterized by X-ray diffractometry.scanning electron microscopy and transmission electron microscopy.X-ray photoelectron spectroscopy was used to determine the chemical composition of the sample and the valence state of elements.Raman spectroscopy of the as-prepared(Pb_xSr_(1-x))TiO_3(x=0.4,0.6) nanotubes at room temperature was also investigated.The results indicate that as-prepared(Pb_xSr_(1-x))TiO_3(x=0.4,0.6) nanotubes are perfectly crystallized and there is a trend of structure change from PST40 to PST60.A weak peak at 508 cm~(-1) assigned to E(3TO) mode can be seen in the Raman spectrum of(Pb_(0.6)Sr_(0.4))TiO_3 sample.Photoluminescence spectra of samples at room temperature reveal three intense emission bands centered at 356,400 nm for(Pb_(0.4)Sr_(0.6))TiO_3 and 413,433,451 nm for(Pb_(0.6)Sr_(0.4))TiO_3 nanotubes. respectively.The peak positions of the emission band have a significant blue shift as Pb content increases.
Lead strontium titanate (Pb_xSr_ (1-x)) TiO_3 (x = 0.4, 0.6) nanotubes were synthesized by sol-gel template method via spin coating.The structures and morphology of the as-prepared samples were characterized by X-ray diffractometry. scanning electron microscopy and transmission electron microscopy. X-ray photoelectron spectroscopy was used to determine the chemical composition of the sample and the valence state of elements. Raman spectroscopy of the as-prepared (Pb_xSr_ (1-x)) TiO_3 (x = 0.4 , 0.6) nanotubes at room temperature was also investigated. The results indicate that the as-prepared (Pb_xSr_ (1-x)) TiO_3 (x = 0.4, 0.6) nanotubes are perfectly crystallized and there is a trend of structure change from PST40 to PST60 . A weak peak at 508 cm -1 assigned to E (3TO) mode can be seen in the Raman spectrum of (Pb_ (0.6) Sr_ (0.4)) TiO_3 sample. Photoluminescence spectra of samples at room temperature reveal three intense emission bands centered at 356,400 nm for (Pb_ (0.4) Sr_ (0.6)) TiO_3 and 413,433,451 nm for (Pb_ (0.6) Sr_ (0.4)) TiO_3 nanotubes. Respectively.The peak positions of the emission band have a significant blue shift as Pb content increases.