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Title: A Highly Stretchable and Fatigue-Free Transparent Electrode Based on an In-Plane Buckled Au Nanotrough Network

Journal Article · · Advanced Electronic Materials
 [1];  [1];  [2];  [1]
  1. Univ. of Houston, TX (United States)
  2. Southern Univ. of Science & Technology (China)

Flexible transparent electrodes are an indispensable component of next-generation soft optoelectronics such as wearable electronics and electronic artificial skins (E-skins). Among the existing candidate materials, metal nanotrough networks exhibit optimal overall optoelectronic performance with impressive bendability. However, their further practical applications are hindered by their limited mechanical stretchability, which is highly desired in biointegrated systems. Here it is demonstrated that superior mechanical stretchability with tensile strains up to 300% can be achieved in Au nanotrough networks by introducing an in-plane sinusoidal wavy structure. For the first time it is shown that with a precisely tuned nanotrough geometry along with an optimized network configuration, the buckled Au nanotrough network can be repeatedly stretched to strains up to 120% for 100 000 cycles, exhibiting excellent fatigue performance. Such highly stretchable and fatigue-free (at a high tensile strain up to 100%) Au nanotrough networks present a competent sheet resistance (Rsh ≈ 10 Ω sq-1) with high optical transparency (T = 91%), which are demonstrated to be highly compatible with human skins as conformal flexible transparent electrodes.

Research Organization:
Univ. of Houston, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010831; K16251101; Y01256120
OSTI ID:
1533057
Alternate ID(s):
OSTI ID: 1401053
Journal Information:
Advanced Electronic Materials, Vol. 3, Issue 3; ISSN 2199-160X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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Cited By (6)

Nanomaterial-Enabled Wearable Sensors for Healthcare journal November 2017
Deformable and Transparent Ionic and Electronic Conductors for Soft Energy Devices journal September 2017
Emerging Novel Metal Electrodes for Photovoltaic Applications journal January 2018
Buckled Structures: Fabrication and Applications in Wearable Electronics journal February 2019
Deformable and Stretchable Electrodes for Soft Electronic Devices journal July 2019
Digitally printed stretchable electronics: a review journal January 2019

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