TY  - JOUR
AU  - Zheng, Lijing
AU  - Zhu, Miaomiao
AU  - Wu, Baohu
AU  - Li, Zhaoling
AU  - Sun, Shengtong
AU  - Wu, Peiyi
TI  - Conductance-stable liquid metal sheath-core microfibers for stretchy smart fabrics and self-powered sensing
JO  - Science advances
VL  - 7
IS  - 22
SN  - 2375-2548
CY  - Washington, DC [u.a.]
PB  - Assoc.
M1  - FZJ-2021-03877
SP  - eabg4041
PY  - 2021
AB  - Highly conductive and stretchy fibers are crucial components for smart fabrics and wearable electronics. However, most of the existing fiber conductors are strain sensitive with deteriorated conductance upon stretching, and thus, a compromised strategy via introducing merely geometric distortion of conductive path is often used for stable conductance. Here, we report a coaxial wet-spinning process for continuously fabricating intrinsically stretchable, highly conductive yet conductance-stable, liquid metal sheath-core microfibers. The microfiber can be stretched up to 1170%, and upon fully activating the conductive path, a very high conductivity of 4.35 × 104 S/m and resistance change of only 4% at 200% strain are realized, arising from both stretch-induced channel opening and stretching out of tortuous serpentine conductive path of the percolating liquid metal network. Moreover, the microfibers can be easily woven into an everyday glove or fabric, acting as excellent joule heaters, electrothermochromic displays, and self-powered wearable sensors to monitor human activities.
LB  - PUB:(DE-HGF)16
C6  - pmid:34049879
UR  - <Go to ISI:>//WOS:000655906900030
DO  - DOI:10.1126/sciadv.abg4041
UR  - https://juser.fz-juelich.de/record/901869
ER  -