Yang Cheng, Liu Li, Gao Yi, Zhang Wan, Zhang Xiujuan, Zhang Liqun
The Key Laboratory for Nanomaterials, Ministry of Education, Beijing 100029, People's Republic of China.
Luminescence. 2006 Mar-Apr;21(2):98-105. doi: 10.1002/bio.891.
The influence of the synthesis conditions (method and sequence of adding reagents, reaction temperature, stirring rate) on the luminescence performance of the rare earth ternary complex compound europium-salicylic acid-(1,10-phenanthroline) [Eu(Sal)(3)Phen] was studied. We show that the method and sequence of adding reagents greatly affects the luminescence properties of the products. Within the range of synthesis temperatures (30-70 degrees C), the complex has a better luminescence performance at the lower temperature. However, performance decreased when the temperature decreased to 20 degrees C. Increase of stirring rate led to better performance in the range 200-700 r.p.m. Infrared (IR) spectroscopy, scanning electron microscopy (SEM) and wide-angle X-ray diffraction (WAXD) were utilized to characterize the structure and morphology of Eu(Sal)(3)Phen. The studies demonstrate that the crystallization of the product increased with increasing luminescence of the product. Therefore, it is proposed that increasing the crystallization of the product will enhance its luminescence performance.
研究了合成条件（试剂添加方法和顺序、反应温度、搅拌速率）对稀土三元配合物铕-水杨酸-(1,10-菲啰啉)[Eu(Sal)₃Phen]发光性能的影响。我们发现试剂添加方法和顺序对产物的发光性质有很大影响。在合成温度范围（30 - 70℃）内，配合物在较低温度下具有较好的发光性能。然而，当温度降至20℃时性能下降。在200 - 700转/分钟范围内，搅拌速率的增加导致性能更好。利用红外（IR）光谱、扫描电子显微镜（SEM）和广角X射线衍射（WAXD）对Eu(Sal)₃Phen的结构和形貌进行了表征。研究表明，产物的结晶度随着产物发光强度的增加而增加。因此，有人提出提高产物的结晶度将增强其发光性能。
