Photoluminescent and crystalline properties of Y3−xAl5O12:Cex3+ phosphor nanofibers prepared by electrospinning
Photoluminescent and crystalline properties of Y3−xAl5O12:Cex3+ phosphor nanofibers prepared by electrospinning
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DOI：
10.1063/1.3095483
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发表时间：
2009-03
影响因子：
3.2
通讯作者：
Adi Bagus Suryamas;M. Munir;Ferry Iskandar;K. Okuyama
中科院分区：
文献类型：
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作者：
Adi Bagus Suryamas;M. Munir;Ferry Iskandar;K. Okuyama
采用静电纺丝法和加热工艺成功制备了掺铈钇铝石榴石（YAG：Ce 3 +; Y3− xAl 5 O 12：Cex 3+）荧光粉纳米纤维。溶解在二甲基甲酰胺、聚（乙烯基吡咯烷酮）和乙醇中的硝酸铝九水合物、硝酸钇六水合物和硝酸铈六水合物构成前体。在大气条件下对前体进行静电纺丝，得到由盐和聚合物复合材料组成的所制备的纤维。然后加热所制备的纤维以除去聚合物并获得YAG：Ce 3+结晶纤维。最终纤维的形态是均匀的;纤维的直径约为300 nm，长度为几厘米。研究了掺杂分数（0.005≤x≤0.4）和加热温度（900-1400 °C）对光纤光致发光（PL）和结晶性能的影响。高的加热温度导致了高的结晶度，晶粒的范围很大。
Cerium-doped yttrium aluminum garnet (YAG:Ce3+; Y3−xAl5O12:Cex3+) phosphor nanofibers were successfully prepared using an electrospinning method followed by a heating process. Aluminum nitrate nonahydrate, yttrium nitrate hexahydrate, and cerium nitrate hexahydrate dissolved in dimethylformadide, poly(vinyl pyrrolidone), and ethanol comprised the precursor. The precursor was electrospun under atmospheric conditions to obtain the as-prepared fibers, which consisted of salts and the polymer composite. The as-prepared fibers were then heated to remove the polymer and to obtain the YAG:Ce3+ crystalline fibers. The morphology of the final fibers was homogeneous; the fibers were approximately 300 nm in diameter and several centimeters in length. The photoluminescence (PL) and crystalline properties of the fibers were studied as a function of both the doping fraction (0.005≤x≤0.4) and the heating temperature (900–1400 °C). High heating temperatures resulted in a high degree of crystallinity, crystallites that ra...