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An excellent cyan-emitting orthosilicate phosphor for NUV-pumped white LED application
Liu, Y. F.; J. Silver; R. J. Xie; J. H. Zhang; H. W. Xu; H. Z. Shao; J. Jiang and H. C. Jiang
2017
Source PublicationJournal of Materials Chemistry C
Volume5Issue:47
AbstractIn this paper, a cyan-emitting phosphor BLS:Ce3+ is reported that has a broad emission band covering both the blue and green regions of the visible spectrum, which can be used instead of two separate blue and green phosphors. The excitation peak of BLS:Ce3+ is located at 400 nm, which matches well with the emission light of efficient near-ultraviolet (NUV) chips. The BLS:Ce3+ phosphor has an internal quantum efficiency (IQE) higher than 90% at room temperature (RT) and an excellent thermal stability (a small reduction of 3% at 150 degrees C relative to the IQE at RT) and is environmentally robust (a small degradation of 6% occurs after aging for 1600 h at 85 degrees C/85% RH relative to the room-temperature IQE value). Using the BLS:Ce3+ phosphor, coupled only with a CaAlSiN3:Eu2+ red phosphor and a 395 nm NUV chip, a NUV-based WLED with a high color rendering index of 90.6 has been achieved. Moreover, the luminous efficiency reaches as high as 32.2 lm W-1, which is much better than that of the NUV-WLEDs employing three phosphors (blue, green and red).
Indexed Bysci ; ei
Language英语
WOS IDWOS:000417284100009
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/59106
Collection中科院长春光机所知识产出
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GB/T 7714
Liu, Y. F.,J. Silver,R. J. Xie,et al. An excellent cyan-emitting orthosilicate phosphor for NUV-pumped white LED application[J]. Journal of Materials Chemistry C,2017,5(47).
APA Liu, Y. F..,J. Silver.,R. J. Xie.,J. H. Zhang.,H. W. Xu.,...&J. Jiang and H. C. Jiang.(2017).An excellent cyan-emitting orthosilicate phosphor for NUV-pumped white LED application.Journal of Materials Chemistry C,5(47).
MLA Liu, Y. F.,et al."An excellent cyan-emitting orthosilicate phosphor for NUV-pumped white LED application".Journal of Materials Chemistry C 5.47(2017).
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