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Full-color tuning in multi-layer core-shell nanoparticles from single-wavelength excitation

Author

Listed:
  • Jinshu Huang

    (South China University of Technology)

  • Lili Tao

    (Guangdong University of Technology)

  • Haopeng Wei

    (South China University of Technology)

  • Haozhang Huang

    (South China University of Technology)

  • Qinyuan Zhang

    (South China University of Technology
    South China University of Technology
    South China University of Technology)

  • Bo Zhou

    (South China University of Technology
    South China University of Technology)

Abstract

Lanthanide-based luminescent materials have shown great capabilities in addressing scientific problems encountered in diverse fields. However, achieving full-color switchable output under single-wavelength irradiation has remained a daunting challenge. Here we report a conceptual model to realize this aim by the temporal control of full upconversion evolution in a multi-layer core-shell nanostructure upon a single commercial 980-nm laser, instead of two or more excitation wavelengths as reported previously. We show that it is able to realize the red-to-green color change (from Er3+) under non-steady state excitation by constructing the cooperative modulation effect in the Er-Tm-Yb triple system, and single out the blue light (from Tm3+) by filtering out the short-decay emissions via a time-gating technique. The key role of Tm3+ in manipulating up-transition dynamics of Er3+ is further demonstrated. Our results present a deep insight into the photophysics of lanthanides, and help develop new generation of smart luminescent materials toward emerging photonic applications.

Suggested Citation

  • Jinshu Huang & Lili Tao & Haopeng Wei & Haozhang Huang & Qinyuan Zhang & Bo Zhou, 2025. "Full-color tuning in multi-layer core-shell nanoparticles from single-wavelength excitation," Nature Communications, Nature, vol. 16(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-57622-y
    DOI: 10.1038/s41467-025-57622-y
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