| Regulating the color output and simultaneously enhancing the intensity of upconversion nanoparticles via a dye sensitization strategy |
| B.Xue; D.Wang; Y.L.Zhang; J.Zuo; Y.L.Chang; L.P.Tu; X.M.Liu
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| 2019
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| 发表期刊 | Journal of Materials Chemistry C
(IF:7.059[JCR-2019],6.404[5-Year]) |
| ISSN | 2050-7526
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| 卷号 | 7期号:28页码:8607-8615 |
| 摘要 | Color-modulated upconversion nanoparticles (UCNPs) have garnered widespread optical applications owing to their superior properties, including low auto-fluorescence background noise, large anti-Stokes shift, and distinguishable sharp emission bands. Recent success in multicolor alteration of UCNPs has mostly relied on the cross-relaxation between activators and other elements, which allows them to perform excellently in optical encoding and bioimaging. However, the color modulation is subject to the cross-relaxation strategy, which heavily weakens the original emission intensity of the activators. Herein, we report a dye-sensitization strategy of conjugating strong near-infrared absorptive dyes on the surface of UCNPs. It was proven that dye sensitization can manipulate the red to green (R/G) emission ratio of NaYF4:Yb/Er@NaYF4: Nd UCNPs and simultaneously enhance their luminescence intensity. The R/G emission ratio can be tuned to increase or decrease, benefiting from the dye sensitization strategy. Proof of concept was demonstrated for anti-counterfeiting application under orthogonal excitation of 808 nm and 980 nm. |
| 关键词 | energy migration,luminescence,emission,mechanism,nanocrystals,dynamics,ions,Materials Science,Physics
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| DOI | 10.1039/c9tc02293g
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| 引用统计 | 正在获取...
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ciomp.ac.cn/handle/181722/62904
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| 专题 | 中国科学院长春光学精密机械与物理研究所
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推荐引用方式
GB/T 7714 |
B.Xue,D.Wang,Y.L.Zhang,et al. Regulating the color output and simultaneously enhancing the intensity of upconversion nanoparticles via a dye sensitization strategy[J]. Journal of Materials Chemistry C,2019,7(28):8607-8615.
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| APA |
B.Xue.,D.Wang.,Y.L.Zhang.,J.Zuo.,Y.L.Chang.,...&X.M.Liu.(2019).Regulating the color output and simultaneously enhancing the intensity of upconversion nanoparticles via a dye sensitization strategy.Journal of Materials Chemistry C,7(28),8607-8615.
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| MLA |
B.Xue,et al."Regulating the color output and simultaneously enhancing the intensity of upconversion nanoparticles via a dye sensitization strategy".Journal of Materials Chemistry C 7.28(2019):8607-8615.
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