Current-Induced Changes of Surface Morphology in Printed Ag Thin Wires.
TL;DR: In this paper, current-induced changes of surface morphology in printed Ag thin wires were investigated by current stressing tests and numerical simulation, and it was found that electromigration was the main factor that caused the change of the surface morphology.
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Abstract: Current-induced changes of surface morphology in printed Ag thin wires were investigated by current stressing tests and numerical simulation. The samples were printed Ag thin wires on a flexible substrate with input and output pads. Different experimentalresults were obtainedthroughchangingthe current density after current supply and the mechanism of those phenomena were investigated by numerical simulations based on the method of atomic flux divergence. Good agreement between the simulations and experimental results was reached. It was found that electromigration was the main factor that caused the change of the surface morphology. The contribution of thermal migration can be ignored, and the Joule heating lead by the supplied current had a very significant accelerating effect on electromigration. Guidelines for effectively changing the Ag thin wire surface through providing predetermined current density was proposed, which were expected to be useful for improving the electrical reliability and lifetime of printed Ag thin wires in flexible electronic devices.
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References
Preparation of solid silver nanoparticles for inkjet printed flexible electronics with high conductivity
TL;DR: The resulting high conductivity of the printed silver patterns reached over 20% of the bulk silver value under ambient conditions, which enabled the fabrication of flexible electronic devices, as demonstrated by the inkjet printing of conductive circuits of LED devices.
282
Electrohydrodynamic printing of silver nanowires for flexible and stretchable electronics.
TL;DR: Electrohydrodynamic (EHD) printing has been developed as a promising technique to print different materials on a variety of substrates with high resolution and here, AgNW ink was developed for EHD printing.
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All-printed, low-cost, tunable sensing range strain sensors based on Ag nanodendrite conductive inks for wearable electronics
Bin Tian,Weijing Yao,Pan Zeng,Xuan Li,Huanjun Wang,Li Liu,Yu Feng,Chengsheng Luo,Wei Wu,Wei Wu +9 more
TL;DR: Wang et al. as mentioned in this paper used Ag nanodendrite (ND) inks with good printability for varieties of substrates, which can be directly screen-printed onto nitrile rubber to manufacture strain sensors.
98
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A water-based silver nanowire ink for large-scale flexible transparent conductive films and touch screens
TL;DR: In this article, Li et al. presented a systematic and effective development procedure starting from self-made AgNWs to a qualified water-based AgNW ink, where several new additives were exploited step by step to adjust the dynamic processes, which were crucial for the preparation of large-scale uniform films.
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