Intense pulse light sintering of an Ag microparticle-based, highly stretchable, and conductive electrode

Nam, Hyun Jin; Kang, Sun Kil; Park, Jin Yeong; Choa, Sung‐Hoon

doi:10.1016/j.mee.2019.111012

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…As a conductive filler, low-cost AgMPs are advantageous for practical industrial applications due to their high conductivity and compatibility with elastomers. 30) In particular, the porous structure of AgMPs enables enhanced mechanical stability with robust percolation during stretching. 31,32) MWCNTs were mixed with 1PHR for AgMP/CNT composites, which significantly improved the electrical and thermal conductivity of conductive composites by enhancing the attraction between AgMPs and maintaining a robust percolation path.…”

Section: Resultsmentioning

confidence: 99%

Optimization of conductive elastomeric composites for directly printed intrinsically stretchable conductors

Kim¹,

Moon²,

Lee³

et al. 2023

Jpn. J. Appl. Phys.

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Intrinsically stretchable solid-state conductors can shed light on the realization of further biocompatible and reliable wearable electronics. However, their material composition should be optimized considering the compatibility of target stretchable platforms. In this paper, we report directly printable conductive elastomeric composites for intrinsically stretchable conductors. Pneumatic direct ink writing (DIW) system is employed to deposit well-defined patterns. Polydimethylsiloxane (PDMS), Ag particles, and multi-walled carbon nanotubes (MWCNTs) were used as elastomeric matrix, conductive filers, and auxiliary fillers, respectively. Because there is a critical trade-off between the conductivity and stretchability depending on the concentration of conductive fillers, we optimize the Ag concentration to 77.5 wt% to fulfill these requirements. Especially, we introduce multi-solvent Ag composite inks to deliver excellent printability and enhanced conductivity simultaneously. We further investigate the electromechanical reliability of the encapsulated conductors undergoing cyclic strains, and they exhibited stable R/RO values over 50% strain.

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Section: Resultsmentioning

confidence: 99%

Optimization of conductive elastomeric composites for directly printed intrinsically stretchable conductors

Kim¹,

Moon²,

Lee³

et al. 2023

Jpn. J. Appl. Phys.

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“…The performance comparison of sustainable porous VegPU/Ag conductor with reported petrol oil-based elastomers/Ag conductors, including maximum strain–conductivity ( k ) at the relaxed state and cycling strain–electrical hysteresis ( l ). The reported conductors utilized fluorine rubber 59 , polyester 61 , PDMS 62 , 65 , TPU 60 , PDMS-4,4′-methylene bis(phenyl urea)-isophorone bis urea units (PDMS-MPU-IU) 63 , Ecoflex 64 , 4-arm polyethylene glycol/poly-aniline/phosphotungstic acid (4-arm PEG/PANI/PTA) 66 , polycaprolactone (PCL) 12 as binders. …”

Section: Resultsmentioning

confidence: 99%

Printed sustainable elastomeric conductor for soft electronics

Lv,

Thangavel,

Xin

et al. 2023

Nat Commun

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The widespread adoption of renewable and sustainable elastomers in stretchable electronics has been impeded by challenges in their fabrication and lacklustre performance. Here, we realize a printed sustainable stretchable conductor with superior electrical performance by synthesizing sustainable and recyclable vegetable oil polyurethane (VegPU) elastomeric binder and developing a solution sintering method for their composites with Ag flakes. The binder impedes the propagation of cracks through its porous network, while the solution sintering reaction reduces the resistance increment upon stretching, resulting in high stretchability (350%), superior conductivity (12833 S cm−1), and low hysteresis (0.333) after 100% cyclic stretching. The sustainable conductor was used to print durable and stretchable impedance sensors for non-obstructive detection of fruit maturity in food sensing technology. The combination of sustainable materials and strategies for realizing high-performance stretchable conductors provides a roadmap for the development of sustainable stretchable electronics.

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“…Thermal sintering only works if the underlying substrate is compatible with elevated temperatures. Alternatively, light assisted sintering is a viable approach because it delivers heat briefly to the particles using an intense flash of light. , Although sintering is typically not used to create stretchable Ag composites (since fused particles are not extensible), there is at least one example where sintering was used to make clusters of Ag particles embedded in an elastomeric matrix . Instead of sintering, another approach to promote particle–particle contact is to mix additives (such as the surfactant, Zonyl) into the elastomeric composites that help promote contact between Ag particles.…”

Section: Stretchable and Conductive Materialsmentioning

confidence: 99%

A Guide to Printed Stretchable Conductors

Sakorikar,

Mihaliak,

Krisnadi

et al. 2024

Chem. Rev.

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Printing of stretchable conductors enables the fabrication and rapid prototyping of stretchable electronic devices. For such applications, there are often specific process and material requirements such as print resolution, maximum strain, and electrical/ ionic conductivity. This review highlights common printing methods and compatible inks that produce stretchable conductors. The review compares the capabilities, benefits, and limitations of each approach to help guide the selection of a suitable process and ink for an intended application. We also discuss methods to design and fabricate ink composites with the desired material properties (e.g., electrical conductance, viscosity, printability). This guide should help inform ongoing and future efforts to create soft, stretchable electronic devices for wearables, soft robots, e-skins, and sensors. CONTENTS 1. Introduction 860 1.1.

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Intense pulse light sintering of an Ag microparticle-based, highly stretchable, and conductive electrode

Cited by 8 publications

References 18 publications

Optimization of conductive elastomeric composites for directly printed intrinsically stretchable conductors

Optimization of conductive elastomeric composites for directly printed intrinsically stretchable conductors

Printed sustainable elastomeric conductor for soft electronics

A Guide to Printed Stretchable Conductors

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