Abstract
Electron trapping materials SrSO4:Eu2+ with various sizes and shapes were prepared by hydrothermal method with the assistance of fatty alcohol polyoxyethylene (3) ether (AEO-3) aqueous solution. Changing the molar ratios of [Sr2+]/[SO4 2−], the dendrites varied from needle, rod to octagonal and hexagonal disk architectures with sizes about 500 nm–4 μm width and 4–10 μm length. The growth mechanics of the particles was discussed to obtain a better understanding on their formation process. In the photoluminescence property investigations of SrSO4:Eu2+, the observed broadband was well identified with the electronic transition configurations of Eu2+. The thermal stability and electron trapping luminescence properties were also characterized.
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Acknowledgments
This work is financially supported by the National Natural Science Foundation of China (No. 20976002), the Beijing Natural Science Foundation (No. 2122012), Key Projects for Science and Technology of Beijing Education Commission (KZ201310011013), Projects of Transformation and Industrialization of College Scientific & Technological Achievements and Projects of the combination of Manufacture. Graduate Student Scientific Research and Academic Innovation Project Funding of Beijing Technology and Business University.
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Di, Q., Han, L., Xu, Q. et al. Hydrothermal approach for the shape-selective SrSO4:Eu2+ microcrystals and its luminescence properties. Appl. Phys. A 118, 961–966 (2015). https://doi.org/10.1007/s00339-014-8843-z
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DOI: https://doi.org/10.1007/s00339-014-8843-z