Tuning upconversion through energy migration in core-shell nanoparticles

Feng Wang; Renren Deng; Juan Wang; Qingxiao Wang; Yu Han; Haomiao Zhu; Xueyuan Chen; Xiaogang Liu

doi:10.1038/nmat3149

Tuning upconversion through energy migration in core-shell nanoparticles

Feng Wang, Renren Deng, Juan Wang, Qingxiao Wang, Yu Han, Haomiao Zhu, Xueyuan Chen, Xiaogang Liu

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1615 Scopus citations

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.

Original language	English (US)
Pages (from-to)	968-973
Number of pages	6
Journal	Nature Materials
Volume	10
Issue number	12
DOIs	https://doi.org/10.1038/nmat3149
State	Published - Oct 23 2011

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): 10974200, 51002151
Acknowledgements: The bulk of the work was supported by the Singapore Ministry of Education (No. MOE2010T2-1-083), the Singapore-MIT Alliance, and the Agency for Science, Technology and Research (No. IMRE/11-1C0110). Y.H. is grateful to KAUST Global Collaborative Research for the Academic Excellence Alliance (AEA) fund. H.Z. and X. C. acknowledge the financial support from the NSFC (Nos. 10974200 and 51002151) and the 863 programs of MOST (Nos. 2009AA03Z430 and 2011AA03A407). We thank T. Nguyen, Y. Liu and L. Tan for their help in sample characterization.

ASJC Scopus subject areas

Mechanics of Materials
General Materials Science
General Chemistry
Mechanical Engineering
Condensed Matter Physics

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title = "Tuning upconversion through energy migration in core-shell nanoparticles",

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. {\textcopyright} 2011 Macmillan Publishers Limited. All rights reserved.",

author = "Feng Wang and Renren Deng and Juan Wang and Qingxiao Wang and Yu Han and Haomiao Zhu and Xueyuan Chen and Xiaogang Liu",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): 10974200, 51002151 Acknowledgements: The bulk of the work was supported by the Singapore Ministry of Education (No. MOE2010T2-1-083), the Singapore-MIT Alliance, and the Agency for Science, Technology and Research (No. IMRE/11-1C0110). Y.H. is grateful to KAUST Global Collaborative Research for the Academic Excellence Alliance (AEA) fund. H.Z. and X. C. acknowledge the financial support from the NSFC (Nos. 10974200 and 51002151) and the 863 programs of MOST (Nos. 2009AA03Z430 and 2011AA03A407). We thank T. Nguyen, Y. Liu and L. Tan for their help in sample characterization.",

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AU - Chen, Xueyuan

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N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): 10974200, 51002151 Acknowledgements: The bulk of the work was supported by the Singapore Ministry of Education (No. MOE2010T2-1-083), the Singapore-MIT Alliance, and the Agency for Science, Technology and Research (No. IMRE/11-1C0110). Y.H. is grateful to KAUST Global Collaborative Research for the Academic Excellence Alliance (AEA) fund. H.Z. and X. C. acknowledge the financial support from the NSFC (Nos. 10974200 and 51002151) and the 863 programs of MOST (Nos. 2009AA03Z430 and 2011AA03A407). We thank T. Nguyen, Y. Liu and L. Tan for their help in sample characterization.

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N2 - 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.

AB - 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.

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Tuning upconversion through energy migration in core-shell nanoparticles

Abstract

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