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@ARTICLE{Yao:901865,
author = {Yao, Mingyue and Wu, Baohu and Feng, Xunda and Sun,
Shengtong and Wu, Peiyi},
title = {{A} {H}ighly {R}obust {I}onotronic {F}iber with
{U}nprecedented {M}echanomodulation of {I}onic {C}onduction},
journal = {Advanced materials},
volume = {33},
number = {42},
issn = {1521-4095},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2021-03873},
pages = {2103755},
year = {2021},
abstract = {Stretchable ionic conductors are appealing for tissue-like
soft electronics, yet suffer from a tardy mechanoelectric
response due to their poor modulation of ionic conduction
arising from intrinsic homogeneous soft chain network. Here,
a highly robust ionotronic fiber is designed by synergizing
ionic liquid and liquid crystal elastomer with alternate
rigid mesogen units and soft chain spacers, which shows an
unprecedented strain-induced ionic conductivity boost
(≈103 times enhanced as stretched to $2000\%$ strain).
Such a surprisingly high enhancement is attributed to the
formation of microphase-separated low-tortuosity
ion-conducting nanochannels guided by strain-induced
emergence of aligned smectic mesophases, thus allowing for
ultrafast ion transport that resembles the role of
“swimming lanes.” Intriguingly, the boosting
conductivity even reverses Pouillet's Law-dictated
resistance increase at certain strains, leading to unique
waveform-discernible strain sensing. Moreover, the fiber
retains thermal actuation properties with a maximum of
$70\%$ strain changes upon heating, and enables integrated
self-perception and actuation. The findings offer a
promising molecular engineering route to mechanically
modulate the ion transport behavior of ionic conductors
toward advanced ionotronic applications.},
cin = {JCNS-4 / JCNS-FRM-II / JCNS-1 / MLZ},
ddc = {660},
cid = {I:(DE-Juel1)JCNS-4-20201012 /
I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-588b)4597118-3},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:34477247},
UT = {WOS:000692649300001},
doi = {10.1002/adma.202103755},
url = {https://juser.fz-juelich.de/record/901865},
}