Preparation and characterization of upconversion luminescent NaYF4:Yb, Er (Tm)/PS bulk transparent nanocomposites through in situ polymerization
Preparation and characterization of upconversion luminescent NaYF4:Yb, Er (Tm)/PS bulk transparent nanocomposites through in situ polymerization
复制标题
原位聚合上转换发光NaYF4:Yb, Er(Tm)/PS块体透明纳米复合材料的制备及表征
DOI：
10.1016/j.jcis.2010.01.082
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发表时间：
2010-05-15
影响因子：
9.9
通讯作者：
Lin, Jun
中科院分区：
文献类型：
--
作者：
Chai, Ruitao;Lian, Hongzhou;Lin, Jun
采用原位聚合法制备了以疏水纳米粒子NaYF4:Yb、Er （Tm）为填料，聚苯乙烯（PS）为主体材料的体块纳米复合材料。采用x射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、热重分析（TGA）、上转换光致发光光谱和发光衰减对油酸稳定的NaYF4:Yb， Er （Tm）纳米颗粒和NaYF4:Yb， Er (Tm)/PS纳米复合材料进行了表征。结晶良好的NaYF4:Yb， Er （Tm）纳米颗粒呈球形，平均直径为40 nm。NaYF4:Yb， Er/PS和NaYF4:Yb， Tm/PS纳米复合材料在980 nm激光激发下表现出强烈的绿色和蓝色上转换光致发光，这是由于NaYF4:Yb， Er和NaYF4:Yb， Tm纳米颗粒的发光集成。这些纳米复合材料有潜力用作3D显示材料。(c) 2010爱思唯尔公司版权所有。
The in situ polymerization method was applied to synthesize bulk nanocomposites consisting of hydrophobic NaYF4:Yb, Er (Tm) nanoparticles as the filler and polystyrene (PS) as the host material. The oleic acid stabilized NaYF4:Yb, Er (Tm) nanoparticles and NaYF4:Yb, Er (Tm)/PS nanocomposites have been well characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), the thermogravimetric analysis (TGA), upconversion photoluminescence spectra and luminescence decays. The well-crystallized NaYF4:Yb, Er (Tm) nanoparticles are spherical with a mean diameter of 40 nm. NaYF4:Yb, Er/PS and NaYF4:Yb, Tm/PS nanocomposites exhibit strong green and blue upconversion photoluminescence upon 980 nm laser excitation, due to the integration of luminescent NaYF4:Yb, Er and NaYF4:Yb, Tm nanoparticles, respectively. These nanocomposites can be potentially used as 3D display materials. (c) 2010 Elsevier Inc. All rights reserved.