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Enhancing multiphoton upconversion through interfacial energy transfer in multilayered nanoparticles

Author

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  • Bin Zhou

    (Huazhong University of Science and Technology)

  • Bing Tang

    (Huazhong University of Science and Technology)

  • Chuang Zhang

    (Chinese Academy of Sciences)

  • Changyun Qin

    (Huazhong University of Science and Technology)

  • Zhanjun Gu

    (Chinese Academy of Sciences)

  • Ying Ma

    (Huazhong University of Science and Technology)

  • Tianyou Zhai

    (Huazhong University of Science and Technology)

  • Jiannian Yao

    (Chinese Academy of Sciences)

Abstract

Photon upconversion in lanthanide-doped upconversion nanoparticles offers a wide variety of applications including deep-tissue biophotonics. However, the upconversion luminescence and efficiency, especially involving multiple photons, is still limited by the concentration quenching effect. Here, we demonstrate a multilayered core-shell-shell structure for lanthanide doped NaYF4, where Er3+ activators and Yb3+ sensitizers are spatially separated, which can enhance the multiphoton emission from Er3+ by 100-fold compared with the multiphoton emission from canonical core-shell nanocrystals. This difference is due to the excitation energy transfer at the interface between activator core and sensitizer shell being unexpectedly efficient, as revealed by the structural and temperature dependence of the multiphoton upconversion luminescence. Therefore, the concentration quenching is suppressed via alleviation of cross-relaxation between the activator and the sensitizer, resulting in a high quantum yield of up to 6.34% for this layered structure. These findings will enable versatile design of multiphoton upconverting nanoparticles overcoming the conventional limitation.

Suggested Citation

  • Bin Zhou & Bing Tang & Chuang Zhang & Changyun Qin & Zhanjun Gu & Ying Ma & Tianyou Zhai & Jiannian Yao, 2020. "Enhancing multiphoton upconversion through interfacial energy transfer in multilayered nanoparticles," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14879-9
    DOI: 10.1038/s41467-020-14879-9
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    Cited by:

    1. Yi Zhang & Pengpeng Lei & Xiaohui Zhu & Yong Zhang, 2021. "Full shell coating or cation exchange enhances luminescence," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    2. Dongkyu Kang & Hyung Shik Kim & Soohyun Han & Yeonju Lee & Young-Pil Kim & Dong Yun Lee & Joonseok Lee, 2023. "A local water molecular-heating strategy for near-infrared long-lifetime imaging-guided photothermal therapy of glioblastoma," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    3. Yanxin Zhang & Rongrong Wen & Jialing Hu & Daoming Guan & Xiaochen Qiu & Yunxiang Zhang & Daniel S. Kohane & Qian Liu, 2022. "Enhancement of single upconversion nanoparticle imaging by topologically segregated core-shell structure with inward energy migration," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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