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Title: Fatigue-free, superstretchable, transparent, and biocompatible metal electrodes

Abstract

Next-generation flexible electronics require highly stretchable and transparent electrodes. Few electronic conductors are both transparent and stretchable, and even fewer can be cyclically stretched to a large strain without causing fatigue. Fatigue, which is often an issue of strained materials causing failure at low strain levels of cyclic loading, is detrimental to materials under repeated loads in practical applications. Here we show that optimizing topology and/or tuning adhesion of metal nanomeshes can significantly improve stretchability and eliminate strain fatigue. The ligaments in an Au nanomesh on a slippery substrate can locally shift to relax stress upon stretching and return to the original configuration when stress is removed. The Au nanomesh keeps a low sheet resistance and high transparency, comparable to those of strain-free indium tin oxide films, when the nanomesh is stretched to a strain of 300%, or shows no fatigue after 50,000 stretches to a strain up to 150%. Moreover, the Au nanomesh is biocompatible and penetrable to biomacromolecules in fluid. The superstretchable transparent conductors are highly desirable for stretchable photoelectronics, electronic skins, and implantable electronics.

Authors:
; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1235137
Grant/Contract Number:  
DOE DE-SC0010831/DE-FG02-13ER46917
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 112 Journal Issue: 40; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English

Citation Formats

Guo, Chuan Fei, Liu, Qihan, Wang, Guohui, Wang, Yecheng, Shi, Zhengzheng, Suo, Zhigang, Chu, Ching-Wu, and Ren, Zhifeng. Fatigue-free, superstretchable, transparent, and biocompatible metal electrodes. United States: N. p., 2015. Web. doi:10.1073/pnas.1516873112.
Guo, Chuan Fei, Liu, Qihan, Wang, Guohui, Wang, Yecheng, Shi, Zhengzheng, Suo, Zhigang, Chu, Ching-Wu, & Ren, Zhifeng. Fatigue-free, superstretchable, transparent, and biocompatible metal electrodes. United States. doi:10.1073/pnas.1516873112.
Guo, Chuan Fei, Liu, Qihan, Wang, Guohui, Wang, Yecheng, Shi, Zhengzheng, Suo, Zhigang, Chu, Ching-Wu, and Ren, Zhifeng. Mon . "Fatigue-free, superstretchable, transparent, and biocompatible metal electrodes". United States. doi:10.1073/pnas.1516873112.
@article{osti_1235137,
title = {Fatigue-free, superstretchable, transparent, and biocompatible metal electrodes},
author = {Guo, Chuan Fei and Liu, Qihan and Wang, Guohui and Wang, Yecheng and Shi, Zhengzheng and Suo, Zhigang and Chu, Ching-Wu and Ren, Zhifeng},
abstractNote = {Next-generation flexible electronics require highly stretchable and transparent electrodes. Few electronic conductors are both transparent and stretchable, and even fewer can be cyclically stretched to a large strain without causing fatigue. Fatigue, which is often an issue of strained materials causing failure at low strain levels of cyclic loading, is detrimental to materials under repeated loads in practical applications. Here we show that optimizing topology and/or tuning adhesion of metal nanomeshes can significantly improve stretchability and eliminate strain fatigue. The ligaments in an Au nanomesh on a slippery substrate can locally shift to relax stress upon stretching and return to the original configuration when stress is removed. The Au nanomesh keeps a low sheet resistance and high transparency, comparable to those of strain-free indium tin oxide films, when the nanomesh is stretched to a strain of 300%, or shows no fatigue after 50,000 stretches to a strain up to 150%. Moreover, the Au nanomesh is biocompatible and penetrable to biomacromolecules in fluid. The superstretchable transparent conductors are highly desirable for stretchable photoelectronics, electronic skins, and implantable electronics.},
doi = {10.1073/pnas.1516873112},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 40,
volume = 112,
place = {United States},
year = {2015},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1516873112

Citation Metrics:
Cited by: 19 works
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Works referenced in this record:

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