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1. Synthesis and Luminescence Properties of Dy,Cr Co-doped ZnGa$lt;inf$gt;2$lt;/inf$gt;O$lt;inf$gt;4$lt;/inf$gt; Persistent Luminescence Nanoparticles

Author

Abdurahman Renagul, Nurmat Nurbiya, Abdukayum Abdukader, Tursun Mamutjan, and Tuerdi Ailijiang

Subjects
Inorganic Chemistry, Materials science, General Materials Science, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 0210 nano-technology, 01 natural sciences, 0104 chemical sciences, Nuclear chemistry
Abstract

以乙二醇辅助水热法制备了Dy 3+ , Cr 3+ 共掺杂ZnGa 2 O 4 的小尺寸、近红外长余辉纳米粒子(PLNPs)。通过优化反应条件、锌的比例和共掺杂稀土离子Dy 3+ 等措施, 不仅提高了PLNPs的余辉发光性能, 而且有效控制了PLNPs的粒径。结果表明, 当起始溶液pH为7、Ga:Zn的比例为2:1.2、Dy 3+ 的掺杂量为1%时, 所合成的PLNPs的尺寸在6 nm左右, 而且具有良好的余辉发光性能, 其近红外余辉时间大于72 h, 在高信噪比生物医学成像中具有潜在应用价值。

Published
2016

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