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Song N, Zhou B, Yan L, Huang J, Zhang Q. Understanding the Role of Yb 3+ in the Nd/Yb Coupled 808-nm-Responsive Upconversion. Front Chem 2019; 6:673. [PMID: 30740392 PMCID: PMC6355672 DOI: 10.3389/fchem.2018.00673] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/24/2018] [Indexed: 12/15/2022] Open
Abstract
The realization of upconversion at 808 nm excitation has shown great advantages in advancing the broad bioapplications of lanthanide-doped nanomaterials. In an 808 nm responsive system, Nd3+ and Yb3+ are both needed where Nd3+ acts as a sensitizer through absorbing the excitation irradiation. However, few studies have been dedicated to the role of Yb3+. Here, we report a systemic investigation on the role of Yb3+ by designing a set of core-shell-based nanostructures. We find that energy migration over the ytterbium sublattice plays a key role in facilitating the energy transportation, and moreover, we show that the interfacial energy transfer occurring at the core-shell interface also has a contribution to the upconversion. By optimizing the dopant concentration and surface anchoring the infrared indocyanine green dye, the 808 nm responsive upconversion is markedly enhanced. These results present an in-depth understanding of the fundamental interactions among lanthanides, and more importantly, they offer new possibilities to tune and control the upconversion of lanthanide-based luminescent materials.
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Affiliation(s)
| | - Bo Zhou
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Institute of Optical Communication Materials, South China University of Technology, Guangzhou, China
| | | | | | - Qinyuan Zhang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Institute of Optical Communication Materials, South China University of Technology, Guangzhou, China
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Wei W, Chen G, Baev A, He GS, Shao W, Damasco J, Prasad PN. Alleviating Luminescence Concentration Quenching in Upconversion Nanoparticles through Organic Dye Sensitization. J Am Chem Soc 2016; 138:15130-15133. [DOI: 10.1021/jacs.6b09474] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Wei
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Guanying Chen
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
- School
of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China
| | - Alexander Baev
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Guang S. He
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Wei Shao
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
- School
of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China
| | - Jossana Damasco
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Paras N. Prasad
- Institute
for Lasers, Photonics, Biophotonics, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
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Barbosa Neto N, Correa D, De Boni L, Parra G, Misoguti L, Mendonça C, Borissevitch I, Zílio S, Gonçalves P. Excited states absorption spectra of porphyrins – Solvent effects. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.09.066] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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