10.1021/acsnano.8b05019.s001
Yan Wang
Yan
Wang
Shu Gong
Shu
Gong
Stephen J. Wang
Stephen J.
Wang
Xinyi Yang
Xinyi
Yang
Yunzhi Ling
Yunzhi
Ling
Lim Wei Yap
Lim Wei
Yap
Dashen Dong
Dashen
Dong
George P. Simon
George P.
Simon
Wenlong Cheng
Wenlong
Cheng
Standing
Enokitake-like Nanowire Films for Highly
Stretchable Elastronics
American Chemical Society
2018
nanoparticle layer sticks
enokitake-like nanowire film structures
expression detection
nanowire films
bottom part
substrate deformation
Enokitake-like Nanowire Films
electron transport pathway
enokitake-like gold-nanowire-based films
limits stretchability
metal films
strain
V-shaped cracks
U-shaped cracks
Stretchable Elastronics Stretchable electronics
2018-09-18 00:00:00
Media
https://acs.figshare.com/articles/media/Standing_Enokitake-like_Nanowire_Films_for_Highly_Stretchable_Elastronics/7098092
Stretchable electronics
may enable electronic components to be
part of our organsideal for future wearable/implantable biodiagnostic
systems. One of key challenges is failure of the soft/rigid material
interface due to mismatching Young’s moduli, which limits stretchability
and durability of current systems. Here, we show that standing enokitake-like
gold-nanowire-based films chemically bonded to an elastomer can be
stretched up to 900% and are highly durable, with >93% conductivity
recovery even after 2000 stretching/releasing cycles to 800% strain.
Both experimental and modeling reveal that this superior elastic property
originates from standing enokitake-like nanowire film structures.
The closely packed nanoparticle layer sticks to the top of the nanowires,
which easily cracks under strain, whereas the bottom part of the nanowires
is compliant with substrate deformation. This leads to tiny V-shaped
cracks with a maintained electron transport pathway rather than large
U-shaped cracks that are frequently observed for conventional metal
films. We further show that our standing nanowire films can serve
as current collectors in supercapacitors and second skin-like smart
masks for facial expression detection.