Opt Lett. 2018 Oct 15;43(20):5013-5016. doi: 10.1364/OL.43.005013.
In contrast to well-known upconversion (UC) emission from Yb-Mn-codoped crystal, a room-temperature intense broadband UC phenomenon was first observed in both Yb-Mn-codoped fluorosilicate glasses and transparent glass ceramics under 980 nm pumping. The obtained photoluminescence ranged from yellow to white to blue. We attributed this effect to the cooperative UC of Yb and to the formation of Yb-Mn pairs. After heat treatment, KZnF nanocrystals appeared in the glass matrix, as identified by x-ray diffraction and transmission electron microscopy, and emission intensity increased 45 times. We believe that Yb-Mn-codoped glasses and glass ceramics show great potential as materials for multicolor displays.
与众所周知的掺 Yb-Mn 晶体的上转换（UC）发射相反，在 980nm 泵浦下，首次在掺 Yb-Mn 的氟硅酸盐玻璃和透明玻璃陶瓷中观察到室温下强宽带 UC 现象。获得的光致发光从黄色到白色到蓝色。我们将这种效应归因于 Yb 的协同 UC 和 Yb-Mn 对的形成。经过热处理后，X 射线衍射和透射电子显微镜证实，玻璃基质中出现了 KZnF 纳米晶，发光强度增加了 45 倍。我们相信，掺 Yb-Mn 的玻璃和玻璃陶瓷作为多色显示器材料具有很大的潜力。
