Abstract
Lanthanide-doped upconversion nanoparticles (UCNPs) are promising for applications as wide as biological imaging, multimodal imaging, photodynamic therapy, volumetric displays, and solar cells. Yet, the weak and narrow absorption of lanthanide ions poses a fundamental limit of UCNPs to withhold their brightness, creating a long-standing hurdle for the field. Dye-sensitized UCNPs are emerging to address this performance-limiting problem, yielding up to thousands-fold brighter luminescence than conventional UCNPs without dye sensitization. In their configuration, organic dyes with spectrally broad and intense absorption are anchored to the surface of UCNPs to harvest the excitation light energy, which is then transferred via Förster and/or Dexter mechanisms across the organic/inorganic interface to the lanthanides incorporated in UCNPs (with or devoid of a shell) to empower efficient upconversion. This tutorial review highlights recent progress in the development of dye sensitized UCNPs, with an emphasis on the theory of energy transfer, the geometric classification of the dye sensitized core and core/shell nanocrystals, and their emerging photonic and biophotonic applications. Opportunities and challenges offered by dye sensitized UCNPs are also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 4150-4167 |
| Number of pages | 18 |
| Journal | Chemical Society Reviews |
| Volume | 46 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 21 Jul 2017 |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Dye-sensitized lanthanide-doped upconversion nanoparticles. / Wang, Xindong; Valiev, Rashid R.; Ohulchanskyy, Tymish Y.; Ågren, Hans; Yang, Chunhui; Chen, Guanying.
In: Chemical Society Reviews, Vol. 46, No. 14, 21.07.2017, p. 4150-4167.Research output: Contribution to journal › Review article
}
TY - JOUR
T1 - Dye-sensitized lanthanide-doped upconversion nanoparticles
AU - Wang, Xindong
AU - Valiev, Rashid R.
AU - Ohulchanskyy, Tymish Y.
AU - Ågren, Hans
AU - Yang, Chunhui
AU - Chen, Guanying
PY - 2017/7/21
Y1 - 2017/7/21
N2 - Lanthanide-doped upconversion nanoparticles (UCNPs) are promising for applications as wide as biological imaging, multimodal imaging, photodynamic therapy, volumetric displays, and solar cells. Yet, the weak and narrow absorption of lanthanide ions poses a fundamental limit of UCNPs to withhold their brightness, creating a long-standing hurdle for the field. Dye-sensitized UCNPs are emerging to address this performance-limiting problem, yielding up to thousands-fold brighter luminescence than conventional UCNPs without dye sensitization. In their configuration, organic dyes with spectrally broad and intense absorption are anchored to the surface of UCNPs to harvest the excitation light energy, which is then transferred via Förster and/or Dexter mechanisms across the organic/inorganic interface to the lanthanides incorporated in UCNPs (with or devoid of a shell) to empower efficient upconversion. This tutorial review highlights recent progress in the development of dye sensitized UCNPs, with an emphasis on the theory of energy transfer, the geometric classification of the dye sensitized core and core/shell nanocrystals, and their emerging photonic and biophotonic applications. Opportunities and challenges offered by dye sensitized UCNPs are also discussed.
AB - Lanthanide-doped upconversion nanoparticles (UCNPs) are promising for applications as wide as biological imaging, multimodal imaging, photodynamic therapy, volumetric displays, and solar cells. Yet, the weak and narrow absorption of lanthanide ions poses a fundamental limit of UCNPs to withhold their brightness, creating a long-standing hurdle for the field. Dye-sensitized UCNPs are emerging to address this performance-limiting problem, yielding up to thousands-fold brighter luminescence than conventional UCNPs without dye sensitization. In their configuration, organic dyes with spectrally broad and intense absorption are anchored to the surface of UCNPs to harvest the excitation light energy, which is then transferred via Förster and/or Dexter mechanisms across the organic/inorganic interface to the lanthanides incorporated in UCNPs (with or devoid of a shell) to empower efficient upconversion. This tutorial review highlights recent progress in the development of dye sensitized UCNPs, with an emphasis on the theory of energy transfer, the geometric classification of the dye sensitized core and core/shell nanocrystals, and their emerging photonic and biophotonic applications. Opportunities and challenges offered by dye sensitized UCNPs are also discussed.
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U2 - 10.1039/c7cs00053g
DO - 10.1039/c7cs00053g
M3 - Review article
VL - 46
SP - 4150
EP - 4167
JO - Chemical Society Reviews
JF - Chemical Society Reviews
SN - 0306-0012
IS - 14
ER -