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https://doi.org/10.1038/nmat3149
DC Field | Value | |
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dc.title | Tuning upconversion through energy migration in core-shell nanoparticles | |
dc.contributor.author | Wang, F. | |
dc.contributor.author | Deng, R. | |
dc.contributor.author | Wang, J. | |
dc.contributor.author | Wang, Q. | |
dc.contributor.author | Han, Y. | |
dc.contributor.author | Zhu, H. | |
dc.contributor.author | Chen, X. | |
dc.contributor.author | Liu, X. | |
dc.date.accessioned | 2014-06-23T05:53:36Z | |
dc.date.available | 2014-06-23T05:53:36Z | |
dc.date.issued | 2011-12 | |
dc.identifier.citation | Wang, F., Deng, R., Wang, J., Wang, Q., Han, Y., Zhu, H., Chen, X., Liu, X. (2011-12). Tuning upconversion through energy migration in core-shell nanoparticles. Nature Materials 10 (12) : 968-973. ScholarBank@NUS Repository. https://doi.org/10.1038/nmat3149 | |
dc.identifier.issn | 14761122 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/77323 | |
dc.description.abstract | Photon upconversion is promising for applications such as biological imaging, data storage or solar cells. Here, we have investigated upconversion processes in a broad range of gadolinium-based nanoparticles of varying composition. We show that by rational design of a core-shell structure with a set of lanthanide ions incorporated into separated layers at precisely defined concentrations, efficient upconversion emission can be realized through gadolinium sublattice-mediated energy migration for a wide range of lanthanide activators without long-lived intermediary energy states. Furthermore, the use of the core-shell structure allows the elimination of deleterious cross-relaxation. This effect enables fine-tuning of upconversion emission through trapping of the migrating energy by the activators. Indeed, the findings described here suggest a general approach to constructing a new class of luminescent materials with tunable upconversion emissions by controlled manipulation of energy transfer within a nanoscopic region. © 2011 Macmillan Publishers Limited. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1038/nmat3149 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1038/nmat3149 | |
dc.description.sourcetitle | Nature Materials | |
dc.description.volume | 10 | |
dc.description.issue | 12 | |
dc.description.page | 968-973 | |
dc.identifier.isiut | 000297692900025 | |
Appears in Collections: | Staff Publications |
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