Abstract
| - Anionic surfactant-AOT-microemulsions-assisted formation and evolution of PbWO4 nanostructures withbundles rodlike, ellipsoidlike, and spherelike prepared at different media conditions were studied by powderX-ray diffraction pattern, field emission scanning electron microscopy, and transmission electron microscopy.The possible mechanisms for the formation of PbWO4 samples in series of microemulsion systems werediscussed. Various comparison experiments show that several experimental parameters, such as the AOTconcentration, the water content, and reaction temperature play important roles in the morphological controlof PbWO4 nanostructures. Room-temperature photoluminescence of PbWO4 samples with different morphologies has also been investigated and the results reveal that all these samples showed similar features withemissions at 480 ∼ 510 nm but different luminescence intensity.
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