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Ultralong UV/mechano-excited room temperature phosphorescence from purely organic cluster excitons

Author

Listed:
  • Xuepeng Zhang

    (The Hong Kong University of Science and Technology)

  • Lili Du

    (The University of Hong Kong)

  • Weijun Zhao

    (The Hong Kong University of Science and Technology)

  • Zheng Zhao

    (The Hong Kong University of Science and Technology)

  • Yu Xiong

    (The Hong Kong University of Science and Technology)

  • Xuewen He

    (The Hong Kong University of Science and Technology)

  • Peng Fei Gao

    (The Hong Kong University of Science and Technology)

  • Parvej Alam

    (The Hong Kong University of Science and Technology)

  • Can Wang

    (Wuhan University)

  • Zhen Li

    (Wuhan University)

  • Jing Leng

    (Chinese Academy of Sciences)

  • Junxue Liu

    (Chinese Academy of Sciences)

  • Chuanyao Zhou

    (Chinese Academy of Sciences)

  • Jacky W. Y. Lam

    (The Hong Kong University of Science and Technology)

  • David Lee Phillips

    (The University of Hong Kong)

  • Guoqing Zhang

    (University of Science and Technology of China)

  • Ben Zhong Tang

    (The Hong Kong University of Science and Technology
    South China University of Technology)

Abstract

Purely organic room temperature phosphorescence (RTP) has attracted wide attention recently due to its various application potentials. However, ultralong RTP (URTP) with high efficiency is still rarely achieved. Herein, by dissolving 1,8-naphthalic anhydride in certain organic solid hosts, URTP with a lifetime of over 600 ms and overall quantum yield of over 20% is realized. Meanwhile, the URTP can also be achieved by mechanical excitation when the host is mechanoluminescent. Femtosecond transient absorption studies reveal that intersystem crossing of the host is accelerated substantially in the presence of a trace amount of 1,8-naphthalic anhydride. Accordingly, we propose that a cluster exciton spanning the host and guest forms as a transient state before the guest acts as an energy trap for the RTP state. The cluster exciton model proposed here is expected to help expand the varieties of purely organic URTP materials based on an advanced understanding of guest/host combinations.

Suggested Citation

  • Xuepeng Zhang & Lili Du & Weijun Zhao & Zheng Zhao & Yu Xiong & Xuewen He & Peng Fei Gao & Parvej Alam & Can Wang & Zhen Li & Jing Leng & Junxue Liu & Chuanyao Zhou & Jacky W. Y. Lam & David Lee Phill, 2019. "Ultralong UV/mechano-excited room temperature phosphorescence from purely organic cluster excitons," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13048-x
    DOI: 10.1038/s41467-019-13048-x
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    Cited by:

    1. Biao Chen & Wenhuan Huang & Guoqing Zhang, 2023. "Observation of Chiral-selective room-temperature phosphorescence enhancement via chirality-dependent energy transfer," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Xiaoyu Chen & Renlong Zhu & Baicheng Zhang & Xiaolong Zhang & Aoyuan Cheng & Hongping Liu & Ruiying Gao & Xuepeng Zhang & Biao Chen & Shuji Ye & Jun Jiang & Guoqing Zhang, 2024. "Rapid room-temperature phosphorescence chiral recognition of natural amino acids," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    3. Weiwei Xie & Wenbin Huang & Jietai Li & Zikai He & Guangxi Huang & Bing Shi Li & Ben Zhong Tang, 2023. "Anti-Kasha triplet energy transfer and excitation wavelength dependent persistent luminescence from host-guest doping systems," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    4. He Wang & Huili Ma & Nan Gan & Kai Qin & Zhicheng Song & Anqi Lv & Kai Wang & Wenpeng Ye & Xiaokang Yao & Chifeng Zhou & Xiao Wang & Zixing Zhou & Shilin Yang & Lirong Yang & Cuimei Bo & Huifang Shi &, 2024. "Abnormal thermally-stimulated dynamic organic phosphorescence," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    5. Xiao Wang & Wenjing Sun & Huifang Shi & Huili Ma & Guowei Niu & Yuxin Li & Jiahuan Zhi & Xiaokang Yao & Zhicheng Song & Lei Chen & Shi Li & Guohui Yang & Zixing Zhou & Yixiao He & Shuli Qu & Min Wu & , 2022. "Organic phosphorescent nanoscintillator for low-dose X-ray-induced photodynamic therapy," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    6. Wenxiang Wang & Shanwen Wang & Yan Gu & Jinyu Zhou & Jiachi Zhang, 2024. "Contact-separation-induced self-recoverable mechanoluminescence of CaF2:Tb3+/PDMS elastomer," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    7. Zongliang Xie & Yufeng Xue & Xianhe Zhang & Junru Chen & Zesen Lin & Bin Liu, 2024. "Isostructural doping for organic persistent mechanoluminescence," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    8. Debasish Barman & Mari Annadhasan & Anil Parsram Bidkar & Pachaiyappan Rajamalli & Debika Barman & Siddhartha Sankar Ghosh & Rajadurai Chandrasekar & Parameswar Krishnan Iyer, 2023. "Highly efficient color-tunable organic co-crystals unveiling polymorphism, isomerism, delayed fluorescence for optical waveguides and cell-imaging," Nature Communications, Nature, vol. 14(1), pages 1-17, December.
    9. Xing Wang Liu & Weijun Zhao & Yue Wu & Zhengong Meng & Zikai He & Xin Qi & Yiran Ren & Zhen-Qiang Yu & Ben Zhong Tang, 2022. "Photo-thermo-induced room-temperature phosphorescence through solid-state molecular motion," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    10. Wenlang Li & Qiuyi Huang & Zhu Mao & Xiaoyi He & Dongyu Ma & Juan Zhao & Jacky W. Y. Lam & Yi Zhang & Ben Zhong Tang & Zhenguo Chi, 2022. "A dish-like molecular architecture for dynamic ultralong room-temperature phosphorescence through reversible guest accommodation," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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