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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Metal-Matrix Composites: Advances in Analysis, Measurement and Observations
Presentation Title 2D interlayer enabled electrical ductility for flexible electronics
Author(s) Pilgyu Kang, Chullhee Cho, Amir Taqieddin, Yuhang Jing, Keong Yong, Jin Myung Kim, Md Farhadul Haque, Narayana R. Aluru, SungWoo Nam
On-Site Speaker (Planned) Pilgyu Kang
Abstract Scope Flexible electrodes are important for next-generation flexible and wearable electronics. However, flexible inorganic electronics integrating stiff metal thin-films on soft substrates suffer interfacial failure substantially reducing lifespan of such devices. We present a 2D-interlayer approach that enhances strain-resilient electrical performance under a high degree of multimodal deformation. Atomically thin 2D-interlayers, such as graphene, induce continuous in-plane crack perturbation in metal films and enable a unique characteristic of ‘electrical ductility’ that allows electrical resistance to gradually increase under strain, whereas bare metal films exhibit unperturbed straight cracks and sudden increase of electrical resistance. 2D-interlayer electrodes sustain 4-5 orders-of-magnitude lower electrical resistance beyond failure strain of conventional metal electrodes. We also show the generality of our approach to use various combination of metals and 2D materials. Finally, we demonstrate enhanced strain resilient electrical functionality for flexible electroluminescent light emitting devices integrated with metal-2D interlayer interconnectors showing potential capability of early damage diagnosis.
Proceedings Inclusion? Planned:
Keywords Thin Films and Interfaces, Composites, Nanotechnology


2D interlayer enabled electrical ductility for flexible electronics
A Brief Review on the Potential of MAX and MAB Phases and Their Derivatives based Composites from a Microstructural Perspective
A Comparative Study on the Effect of Graphene and Multi-walled Carbon Nanotubes used as Interlayers on Resistance Spot Welded Joints of a Carbon Steel
A Method for Measuring Total Protium and Total Deuterium in a Gas Mixture Containing Hydrogen, Deuterium and Hydrogen Deuterium Mixture Using Gas Chromatography
A Study Aimed at Understanding the Use of Nanomaterial-Treated Filters for the Uptake of Heavy Metals from Water Sources
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Effect of Heat Treatment on the Mechanical Properties of an Aluminum Alloy and Aluminum Alloy Composite: A Comparative Study
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Influence of Sintering on the Development of Alumina Toughened Nanocomposites: Conventional Versus Microwave
Influence of Tungsten Nanoparticles on Enhancing the Aging Behavior of a Copper-chromium Alloy
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Kinetics and Thermodynamics of Metal Cluster Nucleation over Graphene Oxide
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Microstructure Evolution of Al/Ca Metal-Matrix Composite Conductor Wires by Thermal Aging
Recent Advances in Analysis, Measurement and Properties of Composite Metal Foams
Strengthening Effects of Multi-walled Carbon Nanotubes and Graphene Nanoplatelets Reinforced in Nickel Matrix Nanocomposites
The Effect of Titanium Carbide and Spark Plasma Sintering Processing on Nickel-Titanium Carbide Composites
The Mechanical Performance of an In Situ Processed Nickel-Titanium-Graphite Metal Matrix Composites: Influence of Processing
The Tribological Behavior of an In-situ Processed Magnesium Alloy Based Metal Matrix Composite
Understanding the Mechanical Response of Friction Stir Welded In-situ Processed Aluminum Alloy Metal Matrix Composite: Experimental and Statistical Modelling Approaches
Use of an Infrared Spectroscopic Method for Isotopic Analysis of Gaseous Uranium Hexafluoride
In situ Atomic Study of Spontaneous Nanocrystallization of Intermetallic for Interconnection of High-Power and Flexible Electronics

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