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Nano Research

Article Title

Water-induced ultralong room temperature phosphorescence by constructing hydrogen-bonded networks

Authors

Ya-Chuan Liang, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Yuan Shang, Super Computer Center, Smart City Institute, Zhengzhou University, Zhengzhou 4500052, China
Kai-Kai Liu, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Zhen Liu, The college of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 4500052, China
Wen-Jie Wu, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Qian Liu, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Qi Zhao, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Xue-Ying Wu, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Lin Dong, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China
Chong-Xin Shan, Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, Zhengzhou 450052, China

Keywords

water-induced, phosphorescence, triplet states, hydrogen-bonded networks

Abstract

Room temperature phosphorescence (RTP) materials show potential applications in information security and optoelectronic devices, but it is still a challenge to achieve RTP in organic materials under water ambient due to the unstable property of triplet states. Herein, water-induced RTP has been demonstrated in the organic microrod (OMR). Noting that the RTP intensity of the as-prepared OMR is greatly enhanced when water is introduced, and the reason for the enhancement can be attributed to the formation of hydrogenbonded networks inside the OMR. The hydrogen-bonded networks can confine the molecular motion effectively, leading to the stability of triplet states; thus the lifetime of the OMR can reach 1.64 s after introducing water. By virtue of the long lifetime of the OMR in the presence of water, multilevel data encryption based on the OMR has been demonstrated.

Graphical Abstract

Publisher

Tsinghua University Press

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