Nd3+ sensitized blue upconversion luminescence in Nd3+/Pr3+ co-doped Ge-Ga-S-CsBr chalcohalide glasses

作者：Zhang, Jihong; Chung, Woon Jin; Zhao, Xiujian^*; Heo, Jong

来源：Journal of Non-Crystalline Solids, 2010, 356(44-49): 2406-2408.

DOI：10.1016/j.jnoncrysol.2010.04.045

• Rare earths
• Blue emission
• Energy transfer
• Up-conversion

The effect of CsBr/Ga ratio on the blue upconverted emission from Nd3+/Pr3+ in Ge-Ga-S-CsBr chalcohalide glasses was investigated. When CsBr/Ga was smaller than unity, the energy transfer from Nd3+ to Pr3+ ions was dominant and blue emission centered at similar to 495 nm (Pr3+:P-3(0)-> H-3(4)) was observed. On the contrary, the intensity of the upconversion luminescence from Nd3+ increased at the expense of the blue emission when CsBr/Ga ratio exceeded unity. The possible relationship between the composition-dependent blue emission and the local environment of rare earth ions was discussed.

• 出版日期2010-10-1
• 单位武汉理工大学