Bright YAG:Ce Nanorod Phosphors Prepared via a Partial Wet Chemical Route and Biolabeling Applications

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• 作者：Daidong Guo ; Baojin Ma ; Lili Zhao ; Jichuan Qiu ; Wei Liu ; Yuanhua Sang ; Jerome Claverie ; Hong Liu
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：May 18, 2016
• 年：2016
• 卷：8
• 期：19
• 页码：11990-11997
• 全文大小：531K
• 年卷期：0
• ISSN：1944-8252

文摘

Cerium-doped yttrium aluminum garnet (YAG:Ce) nanorods were prepared via a partial wet chemical route followed by a calcination process by using Al₂O₃ nanorods as both templates and the reactant. These novel well-crystallized YAG:Ce phosphors with a 200–300 nm diameter and a 2–3 μm length have a high specific surface area while being virtually devoid of surface defects. The YAG:Ce nanorod phosphors possess good luminescent properties compared with granular YAG:Ce phosphors. Photoluminescence quantum yields of YAG:Ce nanorod phosphors are higher than those of granular ones. The YAG:Ce nanorod phosphors exhibit two luminescent decay times due to their unique morphology. The YAG:Ce nanorods exhibited good cytocompatibility with bone marrow mesenchymal stem cells and can be used as biolabel nanoparticles in bioimaging.