Controlled synthesis of Gd2(WO4)3 microstructures and their tunable photoluminescent properties after Eu3+/Tb3+ doping
Controlled synthesis of Gd2(WO4)3 microstructures and their tunable photoluminescent properties after Eu3+/Tb3+ doping
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DOI：
10.1039/c2ce26077h
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发表时间：
2012-09
期刊：
影响因子：
3.1
通讯作者：
Yubin Zeng;Zhengquan Li;Limin Wang;Y. Xiong
中科院分区：
文献类型：
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作者：
Yubin Zeng;Zhengquan Li;Limin Wang;Y. Xiong
我们提出了一种溶液相合成，选择性地产生Gd 2（WO 4）3微尺度带，星和花在水热条件下。通过调节反应温度或添加表面活性剂，可控制地获得不同的微观结构。用XRD、SEM和TEM对产物的物相和形貌进行了表征。通过对Gd_2（WO_4）_3微结构生长过程的研究，提出了不同Gd_2（WO_4）_3微结构的可能形成机制。在Gd_2（WO_4）_3微结构中掺杂Eu ~（3+）和Tb ~（3+）后，实现了较强的多色发光。值得注意的是，在Eu 3+和Tb 3+共掺杂的微结构中已经实现了可调谐的发射和暖白色。这些均匀的微结构有望在未来的彩色显示器和发光器件中找到广泛的应用。
We present a solution-phase synthesis to selectively produce Gd2(WO4)3 microscale belts, stars and flowers under hydrothermal conditions. Different microstructures have been controllably obtained through adjusting the reaction temperature or adding surfactants. The phases and morphologies of the products have been well characterized by XRD, SEM and TEM. Possible formation mechanisms of the different Gd2(WO4)3 microstructures were proposed based on the investigation of the growing process of these microstructures. After doping Eu3+ and Tb3+ inside these Gd2(WO4)3 microstructures, strong and multi-color emission has been realized. Notably, tunable emissions and a warm-white color have been achieved in the Eu3+ and Tb3+ co-doped microstructures. These uniform microstructures are expected to find a broad range of applications in future color displays and light-emitting devices.