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CaTiO3∶Er3+微米带由静电纺丝方法制备。用X射线衍射、傅里叶变换红外光谱、拉曼光谱、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)和上转换发光表征所制备的样品。SEM和TEM测试证实所得前躯体微米带尺寸均一,烧后得到的微米带是由纳米粒子组成的。在980 nm激光激发下,CaTiO3∶Er3+样品发出绿光,绿光发射峰位于546 nm,可归属于Er3+离子的4S3/2→4I15/2跃迁。当Er3+离子的掺杂浓度提高,因为Er3+离子之间的能量传递,红光发射相对于绿光发射增强。
CaTiO3: Er3 + micron tapes were prepared by electrospinning. The prepared samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) and upconversion luminescence. The results of SEM and TEM confirmed that the size of the obtained precursor was uniform, and the microstrip obtained after firing consisted of nanoparticles. Under 980 nm laser excitation, CaTiO3: Er3 + samples emit green light with the green emission peak at 546 nm, which is attributed to the 4S3 / 2 → 4I15 / 2 transition of Er3 + ions. As the doping concentration of Er3 + ions increases, the red emission increases relative to the green emission because of the energy transfer between the Er3 + ions.