What question did this study set out to answer?

Elucidate the mechanistic pathways of self-sensitized upconversion luminescence in Er3+-doped core–shell nanoparticles under 808, 980, and 1530 nm excitations.

January 1, 2018Nanoscale

Self-sensitization induced upconversion of Er 3+ in core–shell nanoparticles

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Authors

BZBo ZhouSouthwest University of Science and Technology NSNan SongState Key Laboratory of Applied Organic Chemistry XLXuelong LiuKunming University of Science and Technology

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Implication

Experimental study demonstrates efficient red upconversion via self-sensitization in erbium-doped core–shell nanoparticles, suggesting new design strategies for advanced luminescent materials.

Key Points

Elucidate the mechanistic pathways of self-sensitized upconversion luminescence in Er3+-doped core–shell nanoparticles under 808, 980, and 1530 nm excitations.
Examined upconversion dynamics in nanoparticles containing high Er3+ dopant concentrations exceeding 20 mol% under near-infrared wavelengths.
Modulated energy transfer pathways by introducing secondary lanthanide dopants including Ho3+, Tm3+, and Yb3+.
Fabricated a tri-layered core–shell nanostructure with spatially controlled Er3+ distribution to manage energy migration pathways.
Cooperative energy transfer upconversion followed by cross-relaxation among Er3+ ions enhanced red luminescence at concentrations above 20 mol%.
Introduction of Ho3+, Tm3+, and Yb3+ ions tailored upconversion dynamics to boost population density in the red emitting state and purify emission color.
Spatially confining Er3+ within a tri-layered core–shell structure suppressed Er-sublattice energy migration, preventing concentration-induced luminescence quenching.

Cite This Study

Zhou et al. (2018) studied this question.

synapsesocial.com/papers/6a94e5b89d7ab2a3d1eff535 https://doi.org/10.1039/c8nr04816a

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Implication

Experimental study demonstrates efficient red upconversion via self-sensitization in erbium-doped core–shell nanoparticles, suggesting new design strategies for advanced luminescent materials.

Self-sensitization induced upconversion of Er 3+ in core–shell nanoparticles

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Implication

Key Points

Cite This Study

Self-sensitization induced upconversion of Er 3+ in core–shell nanoparticles

Discussion

Member takes

Implication

Key Points

Cite This Study

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