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Clustering and halogen effects enabled red/near-infrared room temperature phosphorescence from aliphatic cyclic imides

Author

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  • Tianwen Zhu

    (Shanghai Jiao Tong University)

  • Tianjia Yang

    (Shanghai Jiao Tong University)

  • Qiang Zhang

    (Shanghai Jiao Tong University)

  • Wang Zhang Yuan

    (Shanghai Jiao Tong University)

Abstract

Pure organic room temperature phosphorescence (RTP) materials become increasingly important in advanced optoelectronic and bioelectronic applications. Current phosphors based on small aromatic molecules show emission characteristics generally limited to short wavelengths. It remains an enormous challenge to achieve red and near-infrared (NIR) RTP, particularly for those from nonaromatics. Here we demonstrate that succinimide derived cyclic imides can emit RTP in the red (665, 690 nm) and NIR (745 nm) spectral range with high efficiencies of up to 9.2%. Despite their rather limited molecular conjugations, their unique emission stems from the presence of the imide unit and heavy atoms, effective molecular clustering, and the electron delocalization of halogens. We further demonstrate that the presence of heavy atoms like halogen or chalcogen atoms in these systems is important to facilitate intersystem crossing as well as to extend through-space conjugation and to enable rigidified conformations. This universal strategy paves the way to the design of nonconventional luminophores with long wavelength emission and for emerging applications.

Suggested Citation

  • Tianwen Zhu & Tianjia Yang & Qiang Zhang & Wang Zhang Yuan, 2022. "Clustering and halogen effects enabled red/near-infrared room temperature phosphorescence from aliphatic cyclic imides," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-30368-7
    DOI: 10.1038/s41467-022-30368-7
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    1. Xiugang Wu & Chun-Ying Huang & Deng-Gao Chen & Denghui Liu & Chichi Wu & Keh-Jiunh Chou & Bin Zhang & Yafei Wang & Yu Liu & Elise Y. Li & Weiguo Zhu & Pi-Tai Chou, 2020. "Exploiting racemism enhanced organic room-temperature phosphorescence to demonstrate Wallach’s rule in the lighting chiral chromophores," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    2. Peilong Liao & Shihao Zang & Tongyue Wu & Hongjun Jin & Wenkai Wang & Jianbin Huang & Ben Zhong Tang & Yun Yan, 2021. "Generating circularly polarized luminescence from clusterization‐triggered emission using solid phase molecular self-assembly," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
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    1. Bo Song & Jianyu Zhang & Jiadong Zhou & Anjun Qin & Jacky W. Y. Lam & Ben Zhong Tang, 2023. "Facile conversion of water to functional molecules and cross-linked polymeric films with efficient clusteroluminescence," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Kaijun Chen & Yongfeng Zhang & Yunxiang Lei & Wenbo Dai & Miaochang Liu & Zhengxu Cai & Huayue Wu & Xiaobo Huang & Xiang Ma, 2024. "Twofold rigidity activates ultralong organic high-temperature phosphorescence," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    3. Dian-Xue Ma & Zhong-Qiu Li & Kun Tang & Zhong-Liang Gong & Jiang-Yang Shao & Yu-Wu Zhong, 2024. "Nylons with Highly-Bright and Ultralong Organic Room-Temperature Phosphorescence," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    4. Xin Ji & Weiguo Tian & Kunfeng Jin & Huailing Diao & Xin Huang & Guangjie Song & Jun Zhang, 2022. "Anionic polymerization of nonaromatic maleimide to achieve full-color nonconventional luminescence," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    5. Xiaokang Yao & Yuxin Li & Huifang Shi & Ze Yu & Beishen Wu & Zixing Zhou & Chifeng Zhou & Xifang Zheng & Mengting Tang & Xiao Wang & Huili Ma & Zhengong Meng & Wei Huang & Zhongfu An, 2024. "Narrowband room temperature phosphorescence of closed-loop molecules through the multiple resonance effect," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    6. Guangxin Yang & Subin Hao & Xin Deng & Xinluo Song & Bo Sun & Woo Jin Hyun & Ming-De Li & Li Dang, 2024. "Efficient intersystem crossing and tunable ultralong organic room-temperature phosphorescence via doping polyvinylpyrrolidone with polyaromatic hydrocarbons," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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