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Aggregation-regulated room-temperature phosphorescence materials with multi-mode emission, adjustable excitation-dependence and visible-light excitation

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  • Jingxuan You

    (Chinese Academy of Sciences (CAS)
    University of Chinese Academy of Sciences)

  • Xin Zhang

    (Chinese Academy of Sciences (CAS))

  • Qinying Nan

    (Chinese Academy of Sciences (CAS)
    University of Chinese Academy of Sciences)

  • Kunfeng Jin

    (Chinese Academy of Sciences (CAS))

  • Jinming Zhang

    (Chinese Academy of Sciences (CAS))

  • Yirong Wang

    (Chinese Academy of Sciences (CAS)
    University of Chinese Academy of Sciences)

  • Chunchun Yin

    (Chinese Academy of Sciences (CAS))

  • Zhiyong Yang

    (Sun Yat-sen University)

  • Jun Zhang

    (Chinese Academy of Sciences (CAS)
    University of Chinese Academy of Sciences)

Abstract

Constructing room-temperature phosphorescent materials with multiple emission and special excitation modes is fascinating and challenging for practical applications. Herein, we demonstrate a facile and general strategy to obtain ecofriendly ultralong phosphorescent materials with multi-mode emission, adjustable excitation-dependence, and visible-light excitation using a single organic component, cellulose trimellitate. Based on the regulation of the aggregation state of anionic cellulose trimellitates, such as CBtCOONa, three types of phosphorescent materials with different emission modes are fabricated, including blue, green and color-tunable phosphorescent materials with a strong excitation-dependence. The separated molecularly-dispersed CBtCOONa exhibits blue phosphorescence while the aggregated CBtCOONa emits green phosphorescence; and the CBtCOONa with a coexistence state of single molecular chains and aggregates exhibits color-tunable phosphorescence depending on the excitation wavelength. Moreover, aggregated cellulose trimellitates demonstrate unique visible-light excitation phosphorescence, which emits green or yellow phosphorescence after turning off the visible light. The aggregation-regulated phenomenon provides a simple principle for designing the proof-of-concept and on-demand phosphorescent materials by using a single organic component. Owing to their excellent processability and environmental friendliness, the aforementioned cellulose-based phosphorescent materials are demonstrated as advanced phosphorescence inks to prepare various disposable complex anticounterfeiting patterns and information codes.

Suggested Citation

  • Jingxuan You & Xin Zhang & Qinying Nan & Kunfeng Jin & Jinming Zhang & Yirong Wang & Chunchun Yin & Zhiyong Yang & Jun Zhang, 2023. "Aggregation-regulated room-temperature phosphorescence materials with multi-mode emission, adjustable excitation-dependence and visible-light excitation," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39767-w
    DOI: 10.1038/s41467-023-39767-w
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    References listed on IDEAS

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    1. Suzhi Cai & Huili Ma & Huifang Shi & He Wang & Xuan Wang & Leixin Xiao & Wenpeng Ye & Kaiwei Huang & Xudong Cao & Nan Gan & Chaoqun Ma & Mingxing Gu & Lulu Song & Hai Xu & Youtian Tao & Chunfeng Zhang, 2019. "Enabling long-lived organic room temperature phosphorescence in polymers by subunit interlocking," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    2. 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.
    3. Yongfeng Zhang & Liang Gao & Xian Zheng & Zhonghao Wang & Chaolong Yang & Hailong Tang & Lunjun Qu & Youbing Li & Yanli Zhao, 2021. "Ultraviolet irradiation-responsive dynamic ultralong organic phosphorescence in polymeric systems," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    4. Jianguo Wang & Xinggui Gu & Huili Ma & Qian Peng & Xiaobo Huang & Xiaoyan Zheng & Simon H. P. Sung & Guogang Shan & Jacky W. Y. Lam & Zhigang Shuai & Ben Zhong Tang, 2018. "A facile strategy for realizing room temperature phosphorescence and single molecule white light emission," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
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