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Synthesis of PbWO4 Nano- and Microcrystals with Different Morphologies

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PbWO4 nano- and microcrystals with different morphologies of dot-shape, congregate particle, rod, and fishbone were synthesized successfully. Reaction condition, such as concentration of surfactant, was found to have close relation with the morphologies of final products. PEG200 was used for the dispersant in the synthesis of PbWO4 samples. PbWO4 nanocrystals were dispersed through the formation of Pb O chemical bond. The concentration of PEG200 has an important influence on morphologies of PbWO4 samples. We achieved PbWO4 microcrystals with morphologies of rod and fishbone when the concentration of PEG200 was changed. The possible formation mechanism of PbWO4 crystals was proposed. When excited at 245 nm, PbWO4 samples exhibit emission spectra comprising different luminescent bands.
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Keywords: LUMINESCENCE; MORPHOLOGY CONTROL; PBWO4; POWDER

Document Type: Short Communication

Publication date: March 1, 2014

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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