Infrared quantum cutting in Tb3+,Yb3+ codoped transparent glass ceramics containing CaF2 nanocrystals
作者： Song Ye , Bin Zhu , Jingxin Chen , Jin Luo , Jian Rong Qiu
DOI: 10.1063/1.2907496
关键词:
摘要: Tb3+–Yb3+ codoped transparent oxyfluoride glass ceramics containing CaF2 nanocrystals were synthesized. The formation of in the was confirmed by x-ray diffraction and high resolution transmission electron microscopy. incorporation Tb3+ Yb3+ into nanocrystal lattice energy dispersive spectroscopy. Infrared quantum cutting involving 950–1100nm (F5∕22→F7∕22) emission achieved upon excitation D45 level at 484nm. photoluminescence properties have been studied for these ceramics. concentration dependent efficiency calculated, maximum approaches 155% before reaching quenching threshold.
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