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AgNW/stereocomplex-type polylactide biodegradable conducting film and its application in flexible electronics

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Abstract

The flourishing development and fast-growing consumption of flexible electronics has brought great pressure to the fragile environment owing to the large amount of plastic waste generated by their non-degradable petroleum-derived polymeric substrates. To alleviate environmental burdens, there’s an urgent need to develop bio-based and biodegradable polymers to replace the petroleum-derived ones used in flexible electronics. In this work, a fully biodegradable polymer, stereocomplex-type polylactide (SC-PLA), together with silver nanowire (AgNW) was exploited to fabricate conductive composite film and the application of this film in flexible electronics was explored. By thermal annealing in the protection of a zinc oxide (ZnO) layer, the AgNW/SC-PLA film with 100% stereocomplex crystallites was obtained. The ZnO/AgNW/SC-PLA film exhibited the sheet resistance of 39.3 Ω/sq with good stability under bending and tape tests. As contrasted with PLA, the film based on SC-PLA presented better mechanical properties and hydrolysis resistance. Specially, a pressure sensor based on the ZnO/AgNW/SC-PLA film was successfully fabricated and it showed considerable flexibility, high sensitivity, and good stability. This work provided an effective way to fabricate biodegradable AgNW/SC-PLA film with high performances and great application potentials, which could help broaden the applications of SC-PLA and develop degradable flexible electronics.

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Acknowledgements

The authors gratefully acknowledge the financial support from the National Key Research and Development Program (Grant No. 2018YFB0407102), National Natural Science Foundation of China (Grant Nos. 51903025, 51903027), Chongqing Science and Technology Innovation Leading Talent Support Program (Grant No. T04040012), Natural Science Foundation of Chongqing (Grant No. cstc2019jcyjjqx0021), the Science and Technology Research Program of Chongqing Municipal Education Commission (Grant No. KJQN201901320), Public Service Platform for the Industrialization of Technological Innovation Achievements in the field of Robot and Intelligent Manufacturing in Chongqing (Grant No. 2019-00900-1-1), and the Talent Introduction Project of Chongqing University of Arts and Sciences (Grant No. R2018SCL26), and Sichuan Science and Technology Program (Grant Nos. 2020YFG0281, 2020YFG0279, 2019YFG0121). This work was also sponsored by Sichuan Province Key Laboratory of Display Science and Technology.

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Authors and Affiliations

  1. State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, People’s Republic of China

    Jun Zhou, Junsheng Yu, Jun Lu & Lu Li

  2. Chongqing Key Laboratory of Materials Surface & Interface Science, School of Materials Science and Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, People’s Republic of China

    Jun Zhou, Dongyu Bai, Jun Lu, Ying Li & Lu Li

  3. Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, People’s Republic of China

    Huili Liu

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  1. Jun Zhou
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Contributions

Jun Zhou, Conceptualization, Methodology, Writing - Original Draft; Junsheng Yu, Software, Project administration; Dongyu Bai: Supervision, Funding acquisition, Writing - Review & Editing; Jun Lu, Validation, Data Curation, Formal analysis; Huili Liu, Investigation, Data Curation, Methodology; Ying Li, Investigation, Software, Visualization; Lu Li, Supervision, Funding acquisition, Writing - Review & Editing.

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Zhou, J., Yu, J., Bai, D. et al. AgNW/stereocomplex-type polylactide biodegradable conducting film and its application in flexible electronics. J Mater Sci: Mater Electron 32, 6080–6093 (2021). https://doi.org/10.1007/s10854-021-05327-5

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