Han Xiumei, Feng Xu, Qi Xiwei, Wang Xiaoqiang, Li Mingya
J Nanosci Nanotechnol. 2014 May;14(5):3387-90. doi: 10.1166/jnn.2014.8030.
Bi3+, Eu3+, Dy3+ activated Y2O3 phosphors were prepared through the sol-gel process. X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, and photoluminescence (PL) spectra were used to characterize the resulting phosphors. The XRD patterns show the refined crystal structure of Y2O3. The energy transfer processes of Bi(3+)-Eu3+ occurred in the host lattices. The thermal stability of Y2O3:Bi3+, Eu3+, Dy3+ phosphors was studied. Under short wavelength UV excitation, the phosphors show excellent characteristic red, blue, and yellow emission with medium intensity.
通过溶胶-凝胶法制备了Bi3+、Eu3+、Dy3+激活的Y2O3荧光粉。利用X射线衍射（XRD）、傅里叶变换红外（FT-IR）光谱和光致发光（PL）光谱对所得荧光粉进行了表征。XRD图谱显示了Y2O3的精细晶体结构。Bi(3+)-Eu3+的能量转移过程发生在主体晶格中。研究了Y2O3:Bi3+、Eu3+、Dy3+荧光粉的热稳定性。在短波长紫外激发下，该荧光粉呈现出中等强度的优异特征红、蓝和黄色发射。
