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Printable Stretchable Silver Ink and Application to Printed RFID Tags for Wearable Electronics.


ABSTRACT: A printable elastic silver ink has been developed, which was made of silver flakes, dispersant, and a fluorine rubber and could be sintered at a low temperature. The printed elastic conductors showed low resistivity at 21 ??·cm, which is about 13.2 times of bulk silver (1.59 ??·cm). Their mechanical properties were investigated by bending, stretching, and cyclic endurance tests. It was found that upon stretching the resistance of printed conductors increased due to deformation and small cracks appeared in the conductor, but was almost reversible when the strain was removed, and the recovery of conductivity was found to be time dependent. Radio-frequency identification (RFID) tags were fabricated by screen printing the stretchable silver ink on a stretchable fabric (lycra). High performance of tag was maintained even with 1000 cycles of stretching. As a practical example of wearable electronics, an RFID tag was printed directly onto a T-shirt, which demonstrated its normal working order in a wearing state.

SUBMITTER: Zhong T 

PROVIDER: S-EPMC6766277 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Printable Stretchable Silver Ink and Application to Printed RFID Tags for Wearable Electronics.

Zhong Tao T   Jin Ning N   Yuan Wei W   Zhou Chunshan C   Gu Weibing W   Cui Zheng Z  

Materials (Basel, Switzerland) 20190919 18


A printable elastic silver ink has been developed, which was made of silver flakes, dispersant, and a fluorine rubber and could be sintered at a low temperature. The printed elastic conductors showed low resistivity at 21 μΩ·cm, which is about 13.2 times of bulk silver (1.59 μΩ·cm). Their mechanical properties were investigated by bending, stretching, and cyclic endurance tests. It was found that upon stretching the resistance of printed conductors increased due to deformation and small cracks a  ...[more]

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