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Near-infrared quantum cutting and energy transfer mechanism in Lu2O3:Tm3+/Yb3+ phosphor for high-efficiency photovoltaics
Liu, W.; J. H. Zhang; Z. D. Hao; G. T. Xiang; L. L. Zhang; X. Zhang; G. H. Pan; Y. S. Luo; H. F. Zhao and H. J. Wu
2017
发表期刊Journal of Materials Science-Materials in Electronics
卷号28期号:11
摘要Near-infrared downconversion phenomenon has been demonstrated in Lu2O3: Tm3+/Yb3+ phosphor upon direct excitation of Tm(3+:1)G(4) level at 463 nm. The efficient energy transfer from Tm3+: (1)G(4) -> Yb: F-2(5/2) has been elucidated by the excitation spectra, the visible and NIR spectra as well as the decay curves of Tm: (1)G(4) state. The mechanism of downconversion in Lu2O3: Tm3+/Yb3+ has been discussed in detail. According to analysis of the dependence of the initial transfer rate over Yb3+ ion concentration, it could be included that energy transfer (ET) from Tm3+ to Yb3+ is a single-step ET process instead of a cooperative one. By varying the Yb3+ concentrations, we obtain the Lu2O3: 0.2% Tm3+/30%Yb3+ sample with theoretical quantum efficiency as high as 148.2%. Because the excited state of Yb3+ just above the band edge of crystalline silicon, it suggested that Lu2O3: Tm3+/Yb3+ sample will be beneficial to improve the conversion efficiency of c-Si solar cells.
收录类别sci ; ei
语种英语
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/59094
专题中科院长春光机所知识产出
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Liu, W.,J. H. Zhang,Z. D. Hao,et al. Near-infrared quantum cutting and energy transfer mechanism in Lu2O3:Tm3+/Yb3+ phosphor for high-efficiency photovoltaics[J]. Journal of Materials Science-Materials in Electronics,2017,28(11).
APA Liu, W..,J. H. Zhang.,Z. D. Hao.,G. T. Xiang.,L. L. Zhang.,...&H. F. Zhao and H. J. Wu.(2017).Near-infrared quantum cutting and energy transfer mechanism in Lu2O3:Tm3+/Yb3+ phosphor for high-efficiency photovoltaics.Journal of Materials Science-Materials in Electronics,28(11).
MLA Liu, W.,et al."Near-infrared quantum cutting and energy transfer mechanism in Lu2O3:Tm3+/Yb3+ phosphor for high-efficiency photovoltaics".Journal of Materials Science-Materials in Electronics 28.11(2017).
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