中国物理B ›› 2015, Vol. 24 ›› Issue (6): 67801-067801.doi: 10.1088/1674-1056/24/6/067801
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
邸秋梅, 孙宇梅, 徐齐光, 韩柳, 薛兵, 孙家跃
Di Qiu-Mei (邸秋梅), Sun Yu-Mei (孙宇梅), Xu Qi-Guang (徐齐光), Han Liu (韩柳), Xue Bing (薛兵), Sun Jia-Yue (孙家跃)
摘要: Yb3+, Tm3+ co-doped Gd6MoO12 phosphors with different morphologies are prepared by the hydrothermal method. The dendrites present different morphologies (including hexagonal prisms, spindles, and spheres) after changing the pH value and edetate disodium (EDTA) usage. It is found that each of the two factors plays a crucial role in forming different morphologies.#br#The up-conversion (UC) luminescence is studied. Under 980-nm semiconductor laser excitation, relatively strong blue emission and weak red emission are observed. Finally, the effect of pumping power on the UC luminescence properties and the level diagram mechanism of Gd6MoO12:Yb3+/Tm3+ phosphor are also discussed.
中图分类号: (Optical properties of bulk materials and thin films)