Lu Shaozhe, Zhang Jiahua, Zhang Jishen, Shulin Zhang E, Zhao Haifeng, Luo Yongshi
J Nanosci Nanotechnol. 2016 Apr;16(4):3613-6. doi: 10.1166/jnn.2016.11835.
One-dimensional GdPO4 . nH2O:Eu nanowires and nanorods of different sizes and the same structure were synthesized by hydrothermal method. Nanowire and nanorods had width and length of about 10 nm/50 nm and 80 nm/1 µm, respectively. Adjusting reaction system PH value by adding alkali metal NaOH, the size and shape of the product can be tuned. The high resolution spectra, excitation spectra, and laser selective excitation spectra at low temperature were determined. Nanorod compared with nanowire, photoluminescence was enhanced, and the excitation spectrum and laser selective excitation spectra were broadened. These results suggest that Eu3+ in GdPO4 . nH20 nanorod and nanowire were located in different local environments.
采用水热法合成了具有相同结构、不同尺寸的一维GdPO4·nH2O:Eu纳米线和纳米棒。纳米线和纳米棒的宽度和长度分别约为10 nm/50 nm和80 nm/1 µm。通过添加碱金属NaOH调节反应体系的pH值，可以调控产物的尺寸和形状。测定了其低温下的高分辨光谱、激发光谱和激光选择性激发光谱。与纳米线相比，纳米棒的光致发光增强，激发光谱和激光选择性激发光谱展宽。这些结果表明，GdPO4·nH2O纳米棒和纳米线中的Eu3+处于不同的局部环境。
