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Metal-Enhanced Upconversion Luminescence Tunable through Metal Nanoparticle–Nanophosphor Separation
Abstract
We have demonstrated amplification of luminescence in upconversion nanophosphors (UCNPs) of hexagonal phase NaYF(4) (β-NaYF(4)) doped with the lanthanide dopants Yb(3+), Er(3+) or Yb(3+), Tm(3+) by close proximity to metal nanoparticles (NPs). We present a configuration in which close-packed monolayers of UCNPs are separated from a dense multilayer of metal NPs (Au or Ag) by a nanometer-scale oxide grown by atomic layer deposition. Luminescence enhancements were found to be dependent on the thickness of the oxide spacer layer and the type of metal NP with enhancements of up to 5.2-fold proximal to Au NPs and of up to 45-fold proximal to Ag NPs. Concomitant shortening of the UCNP luminescence decay time and rise time is indicative of the enhancement of the UCNP luminescence induced by resonant plasmonic coupling and nonresonant near-field enhancement from the metal NP layer, respectively.
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Citations
Cites
Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
Cited by
Upconversion Nanoparticles: Design, Nanochemistry, and Applications in Theranostics
Chen, G., Qiu, H., Prasad, P. N., & Chen, X. (2014) · Chemical Reviews · doi:10.1021/cr400425h · Cited by 2,699
Zheng, W., Huang, P., Tu, D., Ma, E., Zhu, H., & Chen, X. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00178h · Cited by 894
Li, X., Zhang, F., & Zhao, D. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00163j · Cited by 615
Kim, B. H., Onses, M. S., Lim, J. B., Nam, S., Oh, N., Kim, H., Yu, K. J., Lee, J. W., Kim, J.-H., Kang, S.-K., et al. (2015) · Nano Letters · doi:10.1021/nl503779e · Cited by 444
Near‐Infrared‐Sensitive Materials Based on Upconverting Nanoparticles
Wu, S., & Butt, H. (2016) · Advanced Materials · doi:10.1002/adma.201502843 · Cited by 417
Metadata
- Authors
- Saboktakin, M., Ye, X., Oh, S. J., Hong, S.-H., Fafarman, A. T., Chettiar, U. K., Engheta, N., Murray, C. B., & Kagan, C. R.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-09-11
- Volume
- 6
- Issue
- 10
- Pages
- 8758-8766
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2085579461
- Cited by
- 292
- References
- 1
- FWCI
- 15.78
- Type
- journal article
- Language
- en
- Open access
- closed
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- Saboktakin, M., Ye, X., Oh, S. J., Hong, S.-H., Fafarman, A. T., Chettiar, U. K., Engheta, N., Murray, C. B., & Kagan, C. R. (2012). Metal-Enhanced Upconversion Luminescence Tunable through Metal Nanoparticle–Nanophosphor Separation. ACS Nano. https://doi.org/10.1021/nn302466r
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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