Electrodeposition of high aspect ratio LaPO4 and LaPO4:Ln3+ (Ln3 + = Ce3+, Tb3+) nanostructures
Electrodeposition of high aspect ratio LaPO4 and LaPO4:Ln3+ (Ln3 + = Ce3+, Tb3+) nanostructures
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DOI：
10.1016/j.elecom.2012.01.033
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发表时间：
2012-04
影响因子：
5.4
通讯作者：
Hui Wang;Run Liu;L. Liying;Xiaofang Shi;Zhu-de Xu
中科院分区：
文献类型：
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作者：
Hui Wang;Run Liu;L. Liying;Xiaofang Shi;Zhu-de Xu
在无表面活性剂、催化剂和模板的水溶液中，室温下在氧化铟锡（ITO）衬底上电沉积了LaPO4和LaPO4：Ln 3+（Ln 3 += Ce 3+，Tb 3+）纳米棒。在80 ° C和1.6V vsSCE条件下制备的沉积物由长度为300 - 500nm、直径为10 - 20nm的纳米棒组成。高分辨透射电镜（HRTEM）和选区电子衍射（SAED）结果表明，LaPO4纳米棒为单晶六方结构。能量色散谱图表明掺杂的Tb 3+离子均匀地分布在纳米棒中。LaPO4：Ce 3+：Tb 3+（Ce 3+，10mol%，Tb 3+，20mol%）纳米结构在室温下具有较强的绿色发光。该方法是制备纳米荧光粉结构或薄膜的一种新颖而简便的途径。
LaPO4and LaPO4:Ln3+(Ln3+=Ce3+, Tb3+) nanostructures composed of interlaced high-aspect-ratio nanorods have been electrodeposited on indium tin oxide (ITO) substrate in aqueous solutions near room temperature without any surfactant, catalyst, or template. The deposits obtained at 1.6V vs SCE and 80°C are composed of interlaced nanorods with the length up to 300–500nm and the diameter from 10nm to 20nm. The HRTEM image and selected area electron diffraction (SAED) of LaPO4nanorods indicate that the LaPO4nanorods are single crystal hexagonal structure. The energy dispersive spectroscopy mapping indicates that the doped Tb3+ions are distributed homogeneously in the nanorods. The LaPO4:Ce3+:Tb3+(Ce3+, 10mol% and Tb3+, 20mol%) nanostructures exhibit strong green emission at room temperature. The method is a novel and facile route for the fabrication of nanophosphor structures or films.