Molten salt synthesis of LaF3:Eu3+ nanoplates with tunable size and their luminescence properties
Molten salt synthesis of LaF3:Eu3+ nanoplates with tunable size and their luminescence properties
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DOI：
10.1007/s11051-009-9590-5
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发表时间：
2010
影响因子：
2.5
通讯作者：
Yang Tian;X. Jiao;Juan Zhang;Ning Sui;Dairong Chen;Guang-yan Hong
中科院分区：
文献类型：
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作者：
Yang Tian;X. Jiao;Juan Zhang;Ning Sui;Dairong Chen;Guang-yan Hong
采用熔盐法制备尺寸可调的LaF3:Eu3+纳米板，并用x射线衍射（XRD）、透射电子显微镜（TEM）、场发射扫描电子显微镜（FE-SEM）和高分辨率透射电子显微镜（HR-TEM）对产物进行了表征。通过调整NH4F和La(NO3)3·6H2O的摩尔比，可以得到不同尺寸（约46、20和12 nm）的纳米片。讨论了反应可能的形成过程，并提出了合理的粒度控制机理。此外，还研究了不同尺寸和掺杂水平的样品在室温下的发光性能。
A molten salt route to LaF3:Eu3+nanoplate with tunable size was developed and the products were characterized by the X-ray diffraction (XRD), transmission electron microscopy (TEM), field-emission scanning electron microscopy (FE-SEM) and high-resolution TEM (HR-TEM). It is found that the nanoplates with different sizes (ca. 46, 20, and 12 nm) could be obtained when the molar ratio of the reagents NH4F and La(NO3)3· 6H2O was adjusted. The possible formation process of reaction was discussed, and the reasonable mechanism of size controlling was also proposed. Furthermore, the luminescent properties of all the samples with different sizes and doping levels were investigated at room temperature.