Lighting up solid states using a rubber

Zhongyu Li, Yanjie Wang, Gleb Baryshnikov, Shen Shen, Man Zhang, Qi Zou, Hans Ågren and Liangliang Zhu ()
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Zhongyu Li: Fudan University
Yanjie Wang: Fudan University
Gleb Baryshnikov: KTH Royal Institute of Technology
Shen Shen: Fudan University
Man Zhang: Fudan University
Qi Zou: Shanghai University of Electric Power
Hans Ågren: Tomsk State University
Liangliang Zhu: Fudan University

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract It is crucial and desirable to develop green and high-efficient strategies to regulate solid-state structures and their related material properties. However, relative to solution, it is more difficult to break and generate chemical bonds in solid states. In this work, a rubbing-induced photoluminescence on the solid states of ortho-pyridinil phenol family was achieved. This rubbing response relied on an accurately designed topochemical tautomerism, where a negative charge, exactly provided by the triboelectric effect of a rubber, can induce a proton transfer in a double H-bonded dimeric structure. This process instantaneously led to a bright-form tautomer that can be stabilized in the solid-state settings, leading to an up to over 450-fold increase of the fluorescent quantum yield of the materials. The property can be repeatedly used due to the reversibility of the tautomerism, enabling encrypted applications. Moreover, a further modification to the structure can be accomplished to achieve different properties, opening up more possibilities for the design of new-generation smart materials.

Date: 2021
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DOI: 10.1038/s41467-021-21253-w

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