Stretchable phosphorescent polymers by multiphase engineering

Nan Gan, Xin Zou, Zhao Qian, Anqi Lv, Lan Wang, Huili Ma, Hu-Jun Qian, Long Gu (), Zhongfu An () and Wei Huang ()
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Nan Gan: Northwestern Polytechnical University
Xin Zou: Northwestern Polytechnical University
Zhao Qian: Jilin University
Anqi Lv: Nanjing Tech University (NanjingTech)
Lan Wang: Nanjing Tech University (NanjingTech)
Huili Ma: Nanjing Tech University (NanjingTech)
Hu-Jun Qian: Jilin University
Long Gu: Northwestern Polytechnical University
Zhongfu An: Nanjing Tech University (NanjingTech)
Wei Huang: Northwestern Polytechnical University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Stretchable phosphorescence materials potentially enable applications in diverse advanced fields in wearable electronics. However, achieving room-temperature phosphorescence materials simultaneously featuring long-lived emission and good stretchability is challenging because it is hard to balance the rigidity and flexibility in the same polymer. Here we present a multiphase engineering for obtaining stretchable phosphorescent materials by combining stiffness and softness simultaneously in well-designed block copolymers. Due to the microphase separation, copolymers demonstrate an intrinsic stretchability of 712%, maintaining an ultralong phosphorescence lifetime of up to 981.11 ms. This multiphase engineering is generally applicable to a series of binary and ternary initiator systems with color-tunable phosphorescence in the visible range. Moreover, these copolymers enable multi-level volumetric data encryption and stretchable afterglow display. This work provides a fundamental understanding of the nanostructures and material properties for designing stretchable materials and extends the potential of phosphorescence polymers.

Date: 2024
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DOI: 10.1038/s41467-024-47673-y

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