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Integrating temporal and spatial control of electronic transitions for bright multiphoton upconversion

Author

Listed:
  • Tianying Sun

    (City University of Hong Kong
    City University of Hong Kong Shenzhen Research Institute)

  • Yuhua Li

    (City University of Hong Kong)

  • Wai Lok Ho

    (City University of Hong Kong)

  • Qi Zhu

    (City University of Hong Kong
    City University of Hong Kong Shenzhen Research Institute)

  • Xian Chen

    (City University of Hong Kong
    City University of Hong Kong Shenzhen Research Institute)

  • Limin Jin

    (Harbin Institute of Technology)

  • Haomiao Zhu

    (Chinese Academy of Sciences)

  • Bolong Huang

    (The Hong Kong Polytechnic University)

  • Jun Lin

    (Chinese Academy of Sciences)

  • Brent E. Little

    (Chinese Academy of Sciences)

  • Sai Tak Chu

    (City University of Hong Kong)

  • Feng Wang

    (City University of Hong Kong
    City University of Hong Kong Shenzhen Research Institute)

Abstract

The applications of lanthanide-doped upconversion nanomaterials are limited by unsatisfactory brightness currently. Herein, a general strategy is proposed for boosting the upconversion efficiency in Er3+ ions, based on combined use of a core−shell nanostructured host and an integrated optical waveguide circuit excitation platform. A NaErF4@NaYF4 core−shell nanoparticle is constructed to host the upconversion process for minimizing non-radiative dissipation of excitation energy by surface quenchers. Furthermore, an integrated optical microring resonator is designed to promote absorption of excitation light by the nanoparticles, which alleviates quenching of excited states due to cross-relaxation and phonon-assisted energy transfer. As a result, multiphoton upconversion emission with a large anti-Stokes shift (greater than 1150 nm) and a high energy conversion efficiency (over 5.0%) is achieved under excitation at 1550 nm. These advances in controlling photon upconversion offer exciting opportunities for important photonics applications.

Suggested Citation

  • Tianying Sun & Yuhua Li & Wai Lok Ho & Qi Zhu & Xian Chen & Limin Jin & Haomiao Zhu & Bolong Huang & Jun Lin & Brent E. Little & Sai Tak Chu & Feng Wang, 2019. "Integrating temporal and spatial control of electronic transitions for bright multiphoton upconversion," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09850-2
    DOI: 10.1038/s41467-019-09850-2
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    Cited by:

    1. Long Yan & Jinshu Huang & Zhengce An & Qinyuan Zhang & Bo Zhou, 2024. "Spatiotemporal control of photochromic upconversion through interfacial energy transfer," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    2. Xiumei Yin & Wen Xu & Ge Zhu & Yanan Ji & Qi Xiao & Xinyao Dong & Ming He & Baosheng Cao & Na Zhou & Xixian Luo & Lin Guo & Bin Dong, 2022. "Towards highly efficient NIR II response up-conversion phosphor enabled by long lifetimes of Er3+," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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