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Performance of OLED under mechanical strain: a review

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Abstract

OLEDs with convenient portability, low power consumption, and mechanical flexibility have successfully demonstrated their wide range of applications in display, lighting, and medical devices. With the biological requirement and continuous development of electronic technology, the OLEDs have opened up new possibilities for wearable electronic devices. Plentiful reports have revealed the progress of OLED devices with excellent performance of mechanical strain, involving flexible electrodes, processing technology, and advanced fabrication. In this review, the OLED processing methods are systematically discussed, and the development of flexible electrodes has been focused in terms of mechanical strain. In addition, the OLED performance with flexible electrodes also is described. The review provides a comprehensive understanding of OLEDs that can withstand the mechanical strain and achieve commercial maturity.

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Image for “Fluorescent OLED” [1]. Copyright 1987, American Institute of Physics. Image for “Fluorescent flex-OLED” [2]. Copyright 1992, Nature. Image for “Phosphorescence” [26]. Copyright 1998, Nature. Image for “TADF” [34]. Copyright 2012, Nature

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Copyright 2011, Science. Image for “Conductive Polymers” [98]. Copyright 2019, Advanced Materials. Image for “Graphene” and “Carbon Nanotubes” [99]. Copyright 2007, Nature Materials. Image for “Metal Grids” [100]. Copyright 2016, Advanced Functional Materials. Image for “Metal Nanowires” [101]. Copyright 2014, Advanced Materials

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Copyright 2016, ACS Applied Materials & Interfaces

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Copyright 2016, Nanoscale

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Copyright 2018, Scientific Reports

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Copyright 2017, ACS Applied Materials & Interfaces

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Copyright 2014, ACS Nano

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Copyright 2015, Nanoscale Research Letters

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Funding

This study was funded by Innovative Research Group Project of the National Natural Science Foundation of China (Grant No. 51702035) and National Natural Science Foundation of China (Grant No. 51975101).

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  1. Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education, Dalian University of Technology, Dalian, 116024, China

    Nan Sun, Chengming Jiang, Qikun Li, Dongchen Tan, Sheng Bi & Jinhui Song

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Sun, N., Jiang, C., Li, Q. et al. Performance of OLED under mechanical strain: a review. J Mater Sci: Mater Electron 31, 20688–20729 (2020). https://doi.org/10.1007/s10854-020-04652-5

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