Choi Min Gi, Kim Dae Il, Chu Dong Min, Park Jae Gyun, Choi In Gook, Shin Sang Su, Yi Soung Soo
Department of Material Science and Engineering, Silla University, 46958, Republic of Korea.
J Nanosci Nanotechnol. 2018 Mar 1;18(3):2010-2013. doi: 10.1166/jnn.2018.14949.
LaGaO3:Er3+, Yb3+ powder with different Er3+ contents (0.01~0.10 mol) was synthesized by a conventional solid-state reaction. The structure, morphology and photoluminescence properties of the as-prepared phosphors were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and fluorescence spectrophotometer techniques, respectively. The photoluminescence (PL) emissions based on the green emission near 522 and 544 nm were observed and the highest emission intensity occurred for the sample LaGaO3:Yb0.15, Er0.07. The green and red up-conversion emissions were observed in Er3+, Yb3+ co-doped LaGaO3 phosphors under the excitation of 980 nm laser diode.
通过传统的固态反应合成了具有不同Er³⁺含量（0.01~0.10摩尔）的LaGaO₃:Er³⁺, Yb³⁺粉末。分别采用X射线衍射（XRD）、扫描电子显微镜（SEM）和荧光分光光度计技术对所制备的荧光粉的结构、形貌和光致发光性能进行了表征。观察到基于522和544nm附近绿色发射的光致发光（PL）发射，并且样品LaGaO₃:Yb₀.₁₅, Er₀.₀₇的发射强度最高。在980nm激光二极管激发下，在Er³⁺, Yb³⁺共掺杂的LaGaO₃荧光粉中观察到了绿色和红色上转换发射。
